A.
Research and explain the following and post your answer to Mr Blog.
1. Explain what is HKEY_CLASSES_ROOT?
2. Explain what is HKEY_CURRENT_USER?
3. What is HKEY_MACHINE_USER?
4. What is HKEY_USER?
NOTE! DEADLINE TOMORROW
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40 comments:
1.) HKEY_CLASSES_ROOT
Abbreviated HKCR, HKEY_CLASSES_ROOT stores information about registered applications, including associations from file extensions and OLE object class ids to the applications used to handle these items. On Windows 2000 and above, HKCR is a compilation of HKCU\Software\Classes and HKLM\Software\Classes. If a given value exists in both of the subkeys above, the one in HKCU\Software\Classes is used.[4]
2.) HKEY_CURRENT_USER
Abbreviated HKCU, HKEY_CURRENT_USER stores settings that are specific to the currently logged-in user. The HKCU key is a link to the subkey of HKEY_USERS that corresponds to the user; the same information is reflected in both locations. On Windows-NT based systems, each users' settings are stored in their own files called NTUSER.DAT and USRCLASS.DAT inside their own documents and settings subfolder.
3.) HKEY_LOCAL_MACHINE
Abbreviated HKLM, HKEY_LOCAL_MACHINE stores settings that are general to all users on the computer. On NT-based versions of Windows, HKLM contains four subkeys, SAM, SECURITY, SOFTWARE and SYSTEM, that are found within their respective files located in the %SystemRoot%\System32\Config folder. A fifth subkey, HARDWARE, is volatile and is created dynamically, and as such is not stored in a file. Information about system hardware drivers and services are located under the SYSTEM subkey, whilst the SOFTWARE subkey contains software and windows settings.
4.)HKEY_USERS
Abbreviated HKU, HKEY_USERS contains subkeys corresponding to the HKEY_CURRENT_USER keys for each user registered on the machine
answer....joe
HKEY_CLASSES_ROOT
Abbreviated HKCR, HKEY_CLASSES_ROOT stores information about registered applications, including associations from file extensions and OLE object class ids to the applications used to handle these items. On Windows 2000 and above, HKCR is a compilation of HKCU\Software\Classes and HKLM\Software\Classes. If a given value exists in both of the subkeys above, the one in HKCU\Software\Classes is used.[4]
HKEY_CURRENT_USER
Abbreviated HKCU, HKEY_CURRENT_USER stores settings that are specific to the currently logged-in user. The HKCU key is a link to the subkey of HKEY_USERS that corresponds to the user; the same information is reflected in both locations. On Windows-NT based systems, each users' settings are stored in their own files called NTUSER.DAT and USRCLASS.DAT inside their own documents and settings subfolder.
HKEY_LOCAL_MACHINE
Abbreviated HKLM, HKEY_LOCAL_MACHINE stores settings that are general to all users on the computer. On NT-based versions of Windows, HKLM contains four subkeys, SAM, SECURITY, SOFTWARE and SYSTEM, that are found within their respective files located in the %SystemRoot%\System32\Config folder. A fifth subkey, HARDWARE, is volatile and is created dynamically, and as such is not stored in a file. Information about system hardware drivers and services are located under the SYSTEM subkey, whilst the SOFTWARE subkey contains software and windows settings.
HKEY_USERS
Abbreviated HKU, HKEY_USERS contains subkeys corresponding to the HKEY_CURRENT_USER keys for each user registered on the machine.
rªFF_vEranO
1. Explain what is HKEY_CLASSES_ROOT?
- Points to branch of Hkey_Local_Machine that describes certain software settings. This key displays the same data as it did in Windows 3.1 - essential information about OLE and association mappings to support drag-and-drop operations, Windows 95 shortcuts (which are, in fact, OLE links), and core aspects of the Windows 95 user interface.
2. Explain what is HKEY_CURRENT_USER?
- This key points to a branch of Hkey_Users for the user who is currently logged on.
3. What is HKEY_LOCAL_MACHINE?
- Contains computer-specific information about the type of hardware installed, software settings, and other information. This information is used for all users who log on to this computer.
4. What is HKEY_USER?
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Contains information about all the users who log on to the computer, including both generic and user-specific information. The generic settings are available to all users who log on to the computer. The information is made up of default settings for applications, desktop configurations, and so on. This key contains sub keys for each user that logs on to this computer.
1. Explain what is HKEY_CLASSES_ROOT?
The HKEY_CLASSES_ROOT (HKCR) key contains file name extension associations and COM class registration information such as ProgIDs, CLSIDs, and IIDs. It is primarily intended for compatibility with the registry in 16-bit Windows.
2. Explain what is HKEY_CURRENT_USER?
The HKEY_CURRENT USER subtree does not contain any data. It just stores a pointer to the content of the HKEY_USERS\ Security ID (SID) of current user subkey. Therefore, the content of that subkey also appear in HKEY_CURRENT_USER, and it can be viewed and changed in either location. This subtree provides easier access to the data.
3. What is HKEY_MACHINE_USER?
Abbreviated HKLM, HKEY_LOCAL_MACHINE stores settings that are general to all users on the computer. On NT-based versions of Windows, HKLM contains four subkeys, SAM, SECURITY, SOFTWARE and SYSTEM, that are found within their respective files located in the %SystemRoot%\System32\Config folder. A fifth subkey, HARDWARE, is volatile and is created dynamically, and as such is not stored in a file. Information about system hardware drivers and services are located under the SYSTEM subkey, whilst the SOFTWARE subkey contains software and windows settings.
4. What is HKEY_USER?
Default is for the default profile used for all users, the S-1-333... is a identifier for a specific user and contains their specific settings. There is one SID for each user on the system, if configured for multiple users.
bY:mArk lAuRenCe R. qUintAnO
By:MARK LAURENCE R. QUINTANO
HKEY_CLASSES_ROOT- in my own understanding, it Points to branch of Hkey_Local_Machine that describes certain software settings. This key displays the same data as it did in Windows 3.1 - essential information about OLE and association mappings to support drag-and-drop operations, Windows 95 shortcuts (which are, in fact, OLE links), and core aspects of the Windows 95 user interface.
HKEY_CURRENT_USER- according to my research,
this key points to a branch of Hkey_Users for the user who is currently logged on.
HKEY_LOCAL_MACHINE
according to my researh it contains computer-specific information about the type of hardware installed, software settings, and other information. This information is used for all users who log on to this computer.
HKEY_USERS
according to my research it contains information about all the users who log on to the computer, including both generic and user-specific information. The generic settings are available to all users who log on to the computer. The information is made up of default settings for applications, desktop configurations, and so on. This key contains sub keys for each user that logs on to this computer.
RHEA GUSTON
HKEY_CLASSES_ROOT Key
The HKEY_CLASSES_ROOT (HKCR) key contains file name extension associations and COM class registration information such as ProgIDs, CLSIDs, and IIDs. It is primarily intended for compatibility with the registry in 16-bit Windows.
By: Gerald P. Cantarona
HKEY_CLASSES_ROOT is the same for Windows 95, Windows 98, and Windows NT 4. This section of the registry is in charge of three important tasks:
Keeping track of the file extensions and their associations with file types. A group of file extension subkeys is devoted to this purpose.
Keeping track of the programs associated with the file types that are registered in the system. A group of class-definition subkeys is devoted to this information.
Keeping track of information about OLE objects and documents. Within the subkey \CLSID are the class identifier subkeys that are devoted to tracking this information.
HKEY_CURRENT_USER THIS KEY ISN’T REALLY A KEY – it doesn’t exist as a distinct entity. It’s an alias to the current user’s subkey in the key HKEY_USERS (a subkey exists for every user who has a profile). If you make changes to one, you’re automatically changing the other.
HKEY_LOCAL_MACHINE
Abbreviated HKLM, HKEY_LOCAL_MACHINE stores settings that are general to all users on the computer. On NT-based versions of Windows, HKLM contains four subkeys, SAM, SECURITY, SOFTWARE and SYSTEM, that are found within their respective files located in the %SystemRoot%\System32\Config folder. A fifth subkey, HARDWARE, is volatile and is created dynamically, and as such is not stored in a file. Information about system hardware drivers and services are located under the SYSTEM subkey, whilst the SOFTWARE subkey contains software and windows settings.
HKEY_USERS
Abbreviated HKU, HKEY_USERS contains subkeys corresponding to the HKEY_CURRENT_USER keys for each user registered on the machine.
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Registry Editor:
1. Explain what is HKEY_CLASSES_ROOT?
HKEY_CLASSES_ROOT is a folder in the registry which keeps information about file Associations, File Extensions, Activex and plugins details. Exact error message would have help us to understand your trouble clearly. However make sure you are installing itune from your Admin account in the windows.
2. Explain what is HKEY_CURRENT_USER?
HKEY_CURRENT_USER Registry entries subordinate to this key define the preferences of the current user. These preferences include the settings of environment variables, data about program groups, colors, printers, network connections, and application preferences.
3. What is HKEY_LOCAL_MACHINE?
Contains computer-specific information about the type of hardware installed, software settings, and other information. This information is used for all users who log on to this computer.
4. What is HKEY_USER?
Contains information about all the users who log on to the computer, including both generic and user-specific information. The generic settings are available to all users who log on to the computer. The information is made up of default settings for applications, desktop configurations, and so on. This key contains sub keys for each user that logs on to this computer.
Jannil Mark P. Damole
aldrin s. dupagan
1. HKEY_CLASSES_ROOT is a folder in the registry which keeps information about file Associations, File Extensions, Activex and plugins details. Exact error message would have help us to understand your trouble clearly. However make sure you are installing itune from your Admin account in the windows.
Don't Fiddle with registry if you are not sure what you are upto.
It can crash your windows.
2. HKEY_CURRENT_USER is the folder who cleans up the audio. This folder can help you if ever your sound not properly works.
3. HKEY_USER is the folder all the current user information for each user of the system.
4.HKEY_LOCAL_MACHINE is setting for hardware, operating system, and install applications.
By: Gerald P. Cantarona
The HKEY_CURRENT_USER subtree contains the user profile for the user who is currently logged on to the computer. The user profile includes environment variables, personal program groups, desktop settings, network connections, printers, and application preferences. The data in the user profile is similar to the data stored in the Win.ini file in Windows 3. x.
by: Gerald P. Cantarona
This document focuses on Registry values related to desktop restrictions. Many of these keys can be modified using the System Policy Editor so I have omitted them here. For information about all of the registry values, see the Registry Help file (Regentry.hlp) on the Windows NT Resource Kit CD.
1.HKEY_CLASSES_ROOT
Abbreviated HKCR, HKEY_CLASSES_ROOT stores information about registered applications, including associations from file extensions and OLE object class ids to the applications used to handle these items. On Windows 2000 and above, HKCR is a compilation of HKCU\Software\Classes and HKLM\Software\Classes. If a given value exists in both of the subkeys above, the one in HKCU\Software\Classes is used.[4]
2.HKEY_CURRENT_USER
Abbreviated HKCU, HKEY_CURRENT_USER stores settings that are specific to the currently logged-in user. The HKCU key is a link to the subkey of HKEY_USERS that corresponds to the user; the same information is reflected in both locations. On Windows-NT based systems, each users' settings are stored in their own files called NTUSER.DAT and USRCLASS.DAT inside their own documents and settings subfolder.
3.HKEY_LOCAL_MACHINE
Abbreviated HKLM, HKEY_LOCAL_MACHINE stores settings that are general to all users on the computer. On NT-based versions of Windows, HKLM contains four subkeys, SAM, SECURITY, SOFTWARE and SYSTEM, that are found within their respective files located in the %SystemRoot%\System32\Config folder. A fifth subkey, HARDWARE, is volatile and is created dynamically, and as such is not stored in a file. Information about system hardware drivers and services are located under the SYSTEM subkey, whilst the SOFTWARE subkey contains software and windows settings.
4.HKEY_USERS
Abbreviated HKU, HKEY_USERS contains subkeys corresponding to the HKEY_CURRENT_USER keys for each user registered on the machine.
HKEY_CLASSES_ROOT Key
The HKEY_CLASSES_ROOT (HKCR) key contains file name extension associations and COM class registration information such as ProgIDs, CLSIDs, and IIDs. It is primarily intended for compatibility with the registry in 16-bit Windows. Class registration and file name extension information is stored under both the HKEY_LOCAL_MACHINE and HKEY_CURRENT_USER keys. The HKEY_LOCAL_MACHINE\Software\Classes key contains default settings that can apply to all users on the local computer. The HKEY_CURRENT_USER\Software\Classes key contains settings that apply only to the interactive user. The HKEY_CLASSES_ROOT key provides a view of the registry that merges the information from these two sources. HKEY_CLASSES_ROOT also provides this merged view for applications designed for previous versions of Windows. The user-specific settings have priority over the default settings. For example, the default setting might specify a particular application to handle .doc files. But a user can override this setting by specifying a different application in the registry.
HKEY_CURRENT_USER
The HKEY_CURRENT_USER subtree contains the user profile for the user who is currently logged on to the computer. The user profile includes environment variables, personal program groups, desktop settings, network connections, printers, and application preferences. The data in the user profile is similar to the data stored in the Win.ini file in Windows 3. x.
The HKEY_CURRENT USER subtree does not contain any data. It just stores a pointer to the content of the HKEY_USERS\ Security ID (SID) of current user subkey. Therefore, the content of that subkey also appear in HKEY_CURRENT_USER, and it can be viewed and changed in either location. This subtree provides easier access to the data.
A new HKEY_CURRENT_USER subtree is created each time a user logs on. The data for the subtree comes from the profile of the current user. If no profile is available, the subtree is built from the user profile settings established for a default user, which are stored in System drive \Documents and Settings\Default User (WINNT)\Ntuser.dat.
HKEY_LOCAL_MACHINE
The HKEY_LOCAL_MACHINE subtree contains information about the local computer system, including hardware and operating system data, such as bus type, system memory, device drivers, and startup control parameters.
HKEY_USER
This document focuses on Registry values related to desktop restrictions. Many of these keys can be modified using the System Policy Editor so I have omitted them here. For information about all of the registry values, see the Registry Help file (Regentry.hlp) on the Windows NT Resource Kit CD.
BY:IVIE C. ISOLAN
http://sZhyvHiNg18.blogspot.com
1.HKEY_CLASSES_ROOT
is the same for Windows 95, Windows 98, and Windows NT 4. This section of the registry is in charge of three important tasks:
Keeping track of the file extensions and their associations with file types. A group of file extension subkeys is devoted to this purpose.
Keeping track of the programs associated with the file types that are registered in the system. A group of class-definition subkeys is devoted to this information.
Keeping track of information about OLE objects and documents. Within the subkey \CLSID are the class identifier subkeys that are devoted to tracking this information.
2.HKEY_CURRENT_USER
is the folder who cleans up the audio. This folder can help you if ever your sound not properly works.
3.HKEY_USER is the folder all the current user information for each user of the system.
4.HKEY_LOCAL_MACHINE is setting for hardware, operating system, and install applications
http://mrlonely-boi.blogspot.com/
By: Gerald P. cantarona
HKEY_LOCAL_MACHINE
HKLM
Description
The HKEY_LOCAL_MACHINE subtree contains information about the local computer system, including hardware and operating system data, such as bus type, system memory, device drivers, and startup control parameters.
from: Anthonyvann
1. Explain what is HKEY_CLASSES_ROOT?HKEY_CLASSES_ROOT is the same for Windows 95, Windows 98, and Windows NT 4. This section of the registry is in charge of three important tasks:
Keeping track of the file extensions and their associations with file types. A group of file extension subkeys is devoted to this purpose.
Keeping track of the programs associated with the file types that are registered in the system. A group of class-definition subkeys is devoted to this information.
Keeping track of information about OLE objects and documents. Within the subkey \CLSID are the class identifier subkeys that are devoted to tracking this information.
2. Explain what is HKEY_CURRENT_USER?
Related to HKey_Current_User
FAT - File Allocation Table
RAS - Remote Access Service
WMP - Windows Media Player
WQL - WMI Query Language
GPO - Group Policy Object
NTFS - NT File System
LM - LAN Manager
UPnP - Universal Plug and Play
HKCC - HKey_Current_Config
HKCR - HKey_Classes_Root
HKLM - HKey_Local_Machine
RRAS - Routing and Remote Access Service
OPK - OEM Pre-installation Kit
CIMOM - Common Information Model Object Manager
RSoP - Resultant Set of Policy
RTC - Real-Time Communications
SAK - Server Appliance Kit
DSI - Dynamic System Initiative
WMSRT - Windows Malicious Software Removal Tool
ADO - ActiveX Data Objects
3. What is HKEY_LOCAL_MACHINE
HKEY_LOCAL_MACHINE is the keeper of the configuration data for a computer. Both hardware and software are tracked in this key, along with other varied information about both entities. For example, not only does this key include specific information about the configuration of your hardware and peripherals, but it also stores all the available choices for making changes (the keyboard language options fill up several pages if you print them out). These are the choices you see as you configure your machine through the Control Panel. This key is enormous.
In principle, this key is pretty much the same for Windows 95, Windows 98, and Windows NT 4, although you’ll find some differences as you drill down. The subkeys are a bit different, but in essence, in both operating systems, this is where to find everything you ever wanted to know about a computer – perhaps more than you ever wanted to know.
4. What is HKEY_USER?
HKEY_Classes_Root - file associations and OLE information
HKEY_Current_User - all preferences set for current user
HKEY_User - all the current user information for each user of the system
HKEY_Local_Machine - settings for hardware, operating system, and installed applications
HKEY_Current_Configuration - settings for the display and printers
HKEY_Dyn_Data - performance data
Most Windows applications write data to the Registry, at least during installation. You can edit the Registry directly by using the Registry Editor (regedit.exe) provided with the operating system. However, you must take great care because errors in the Registry could disable your computer.
HKEY_CLASSES_ROOT
›› Contains file name extension associations and COM class registration information such as ProgIDs, CLSIDs, and IIDs. It is primarily intended for compatibility with the registry in 16-bit Windows also provides this merged view for applications designed for previous versions of Windows.
›› The user-specific settings have priority over the default settings. For example, the default setting might specify a particular application to handle .doc files. But a user can override this setting by specifying a different application in the registry
HKEY_CURRENT_USER
›› Sub tree contains the user profile for the user who is currently logged on to the computer.
The user profile includes environment variables, personal program groups, desktop settings, networkconnections, printers, and application preferences. The data in the user profile is similar to the data stored in the Win.ini file in Windows 3. X.
HKEY_LOCAL_MACHINE
›› Sub tree contains information about the local computer system, including hardware and operating system data, such as bus type, system memory, device drivers, and startup control parameters.
HKEY_USER
›› This entry allows you to hide local and network drives selectively. When you hide a drive, the iconrepresenting the drive does not appear in My Computer, Explorer, or Network Neighborhood, and the drive letter does not appear as a choice in the Open menu of applications. This allows you to protect certain drives, including the floppy disk drive, from misuse or to direct users to save their work to certain drives.
FRANCISCO, DESIREE P.
sayz2rock@yahoo.com
HKEY_CLASSES_ROOT
-stores information about registered file extensions and object class to the application used to the handle these items.
HKEY_CURRENT_USER
-Abbreviated HKCU, HKEY_CURRENT_USER stores settings that are specific to the currently logged-in user. The HKCU key is a link to the subkey of HKEY_USERS that corresponds to the user; the same information is reflected in both locations. On Windows-NT based systems, each users' settings are stored in their own files called NTUSER.DAT and USRCLASS.DAT inside their own documents and settings subfolder.
HKEY_LOCAL_MACHINE
Abbreviated HKLM, HKEY_LOCAL_MACHINE stores settings that are general to all users on the computer. On NT-based versions of Windows, HKLM contains four subkeys, SAM, SECURITY, SOFTWARE and SYSTEM, that are found within their respective files located in the %SystemRoot%\System32\Config folder. A fifth subkey, HARDWARE, is volatile and is created dynamically, and as such is not stored in a file. Information about system hardware drivers and services are located under the SYSTEM subkey, whilst the SOFTWARE subkey contains software and wi is the keeper of the configuration data for a computer. Both hardware and software are tracked in this key, along with other varied information about both entities. For example, not only does this key include specific information about the configuration of your hardware and peripherals, but it also stores all the available choices for making changes (the keyboard language options fill up several pages if you print them out). These are the choices you see as you configure your machine through the Control Panel. This key is enormous.
In principle, this key is pretty much the same for Windows 95, Windows 98, and Windows NT 4, although you’ll find some differences as you drill down. The subkeys are a bit different, but in essence, in both operating systems, this is where to find everything you ever wanted to know about a computer – perhaps more than you ever wanted to kndows settings.
HKEY_USERS
Windows NT HKEY_USERS registry hive keeps all the user-specific data required by the operating system and applications. That includes things like screen saver, fonts, folder view preferences, event sounds, and the list of recent Start/Run entries. Directly under the HKU key is a set of keys that represent all the user names created on the system. There is also a .DEFAULT key under HKU that contains the settings that will be used when a new user is created. The .DEFAULT settings are also used when no user is logged into NT. The .DEFAULT profile is used while the NT Alt-Ctl-Del logon message is displayed. Changing the color scheme under .DEFAULT will change the color scheme used for logons. The default logon screen saver is the blank screen saver. Probably best to leave it as
HKEY_CLASSES_ROOT
-stores information about registered file extensions and object class to the application used to the handle these items.
HKEY_CURRENT_USER
-Abbreviated HKCU, HKEY_CURRENT_USER stores settings that are specific to the currently logged-in user. The HKCU key is a link to the subkey of HKEY_USERS that corresponds to the user; the same information is reflected in both locations. On Windows-NT based systems, each users' settings are stored in their own files called NTUSER.DAT and USRCLASS.DAT inside their own documents and settings subfolder.
HKEY_LOCAL_MACHINE
Abbreviated HKLM, HKEY_LOCAL_MACHINE stores settings that are general to all users on the computer. On NT-based versions of Windows, HKLM contains four subkeys, SAM, SECURITY, SOFTWARE and SYSTEM, that are found within their respective files located in the %SystemRoot%\System32\Config folder. A fifth subkey, HARDWARE, is volatile and is created dynamically, and as such is not stored in a file. Information about system hardware drivers and services are located under the SYSTEM subkey, whilst the SOFTWARE subkey contains software and wi is the keeper of the configuration data for a computer. Both hardware and software are tracked in this key, along with other varied information about both entities. For example, not only does this key include specific information about the configuration of your hardware and peripherals, but it also stores all the available choices for making changes (the keyboard language options fill up several pages if you print them out). These are the choices you see as you configure your machine through the Control Panel. This key is enormous.
In principle, this key is pretty much the same for Windows 95, Windows 98, and Windows NT 4, although you’ll find some differences as you drill down. The subkeys are a bit different, but in essence, in both operating systems, this is where to find everything you ever wanted to know about a computer – perhaps more than you ever wanted to kndows settings.
HKEY_USERS
Windows NT HKEY_USERS registry hive keeps all the user-specific data required by the operating system and applications. That includes things like screen saver, fonts, folder view preferences, event sounds, and the list of recent Start/Run entries. Directly under the HKU key is a set of keys that represent all the user names created on the system. There is also a .DEFAULT key under HKU that contains the settings that will be used when a new user is created. The .DEFAULT settings are also used when no user is logged into NT. The .DEFAULT profile is used while the NT Alt-Ctl-Del logon message is displayed. Changing the color scheme under .DEFAULT will change the color scheme used for logons. The default logon screen saver is the blank screen saver. Probably best to leave it as
blog ID: www.geraldcare25@yahoo.com
Some registry keys in the HKEY_CLASSES_ROOT cannot be easily modified without changing its permission, and you must know what exact registry key to modified, for example, run regedit, on your left screen right click on any key there, you will see a permission tab, from there you can assign which use account has access to certain things.
If may be possible that your account is limited in some way thats why antivirus install doesn't work, try creating a new account in your computer with administrator right and redo your installation, this shouldn't fail, if it does, then you probably need to re-install your windows.
HKEY_CLASSES_ROOT?
- Points to branch of Hkey_Local_Machine that describes certain software settings. This key displays the same data as it did in Windows 3.1 - essential information about OLE and association mappings to support drag-and-drop operations, Windows 95 shortcuts (which are, in fact, OLE links), and core aspects of the Windows 95 user interface.
2. Explain what is HKEY_CURRENT_USER?
- This key points to a branch of Hkey_Users for the user who is currently logged on.
3. What is HKEY_LOCAL_MACHINE?
- Contains computer-specific information about the type of hardware installed, software settings, and other information. This information is used for all users who log on to this computer.
4. What is HKEY_USER?
-
Contains information about all the users who log on to the computer, including both generic and user-specific information. The generic settings are available to all users who log on to the computer. The information is made up of default settings for applications, desktop configurations, and so on. This key contains sub keys for each user that logs on to this computer.
2.) HKEY_CURRENT_USER
HKEY_CURRENT_USER stores settings that are specific to the currently logged-in user. The HKCU key is a link to the subkey of HKEY_USERS that corresponds to the user; the same information is reflected in both locations. On Windows-NT based systems, each users' settings are stored in their own files called NTUSER.DAT and USRCLASS.DAT
HKEY_CLASSES_ROOT?
- Points to branch of Hkey_Local_Machine that describes certain software settings. This key displays the same data as it did in Windows 3.1 - essential information about OLE and association mappings to support drag-and-drop operations, Windows 95 shortcuts (which are, in fact, OLE links), and core aspects of the Windows 95 user interface.
2. Explain what is HKEY_CURRENT_USER?
- This key points to a branch of Hkey_Users for the user who is currently logged on.
3. What is HKEY_LOCAL_MACHINE?
- Contains computer-specific information about the type of hardware installed, software settings, and other information. This information is used for all users who log on to this computer.
4. What is HKEY_USER?
-
Contains information about all the users who log on to the computer, including both generic and user-specific information. The generic settings are available to all users who log on to the computer. The information is made up of default settings for applications, desktop configurations, and so on. This key contains sub keys for each user that logs on to this computer.
3:) HKEY_LOCAL_MACHINE stores settings that are general to all users on the computer. On NT-based versions of Windows, HKLM contains four subkeys, SAM, SECURITY, SOFTWARE and SYSTEM, that are found within their respective files located in the %SystemRoot%\System32\Config folder. A fifth subkey, HARDWARE, is volatile and is created dynamically, and as such is not stored in a file. Information about system hardware drivers and services are located under the SYSTEM subkey, whilst the SOFTWARE subkey contains software and windows settings.
.......omandac
1.) HKEY_CLASSES_ROOT
Abbreviated HKCR, HKEY_CLASSES_ROOT stores information about registered applications, including associations from file extensions and OLE object class ids to the applications used to handle these items. On Windows 2000 and above, HKCR is a compilation of HKCU\Software\Classes and HKLM\Software\Classes. If a given value exists in both of the subkeys above, the one in HKCU\Software\Classes is used.[4]
2.) HKEY_CURRENT_USER
Abbreviated HKCU, HKEY_CURRENT_USER stores settings that are specific to the currently logged-in user. The HKCU key is a link to the subkey of HKEY_USERS that corresponds to the user; the same information is reflected in both locations. On Windows-NT based systems, each users' settings are stored in their own files called NTUSER.DAT and USRCLASS.DAT inside their own documents and settings subfolder.
3.) HKEY_LOCAL_MACHINE
Abbreviated HKLM, HKEY_LOCAL_MACHINE stores settings that are general to all users on the computer. On NT-based versions of Windows, HKLM contains four subkeys, SAM, SECURITY, SOFTWARE and SYSTEM, that are found within their respective files located in the %SystemRoot%\System32\Config folder. A fifth subkey, HARDWARE, is volatile and is created dynamically, and as such is not stored in a file. Information about system hardware drivers and services are located under the SYSTEM subkey, whilst the SOFTWARE subkey contains software and windows settings.
4.)HKEY_USERS
Abbreviated HKU, HKEY_USERS contains subkeys corresponding to the HKEY_CURRENT_USER keys for each user registered on the machine
1.) HKEY_CLASSES_ROOT
Abbreviated HKCR, HKEY_CLASSES_ROOT stores information about registered applications, including associations from file extensions and OLE object class ids to the applications used to handle these items. On Windows 2000 and above, HKCR is a compilation of HKCU\Software\Classes and HKLM\Software\Classes. If a given value exists in both of the subkeys above, the one in HKCU\Software\Classes is used.[4]
2.) HKEY_CURRENT_USER
Abbreviated HKCU, HKEY_CURRENT_USER stores settings that are specific to the currently logged-in user. The HKCU key is a link to the subkey of HKEY_USERS that corresponds to the user; the same information is reflected in both locations. On Windows-NT based systems, each users' settings are stored in their own files called NTUSER.DAT and USRCLASS.DAT inside their own documents and settings subfolder.
3.) HKEY_LOCAL_MACHINE
Abbreviated HKLM, HKEY_LOCAL_MACHINE stores settings that are general to all users on the computer. On NT-based versions of Windows, HKLM contains four subkeys, SAM, SECURITY, SOFTWARE and SYSTEM, that are found within their respective files located in the %SystemRoot%\System32\Config folder. A fifth subkey, HARDWARE, is volatile and is created dynamically, and as such is not stored in a file. Information about system hardware drivers and services are located under the SYSTEM subkey, whilst the SOFTWARE subkey contains software and windows settings.
4.)HKEY_USERS
Abbreviated HKU, HKEY_USERS contains subkeys corresponding to the HKEY_CURRENT_USER keys for each user registered on the machine
1.) HKEY_CLASSES_ROOT
Abbreviated HKCR, HKEY_CLASSES_ROOT stores information about registered applications, including associations from file extensions and OLE object class ids to the applications used to handle these items. On Windows 2000 and above, HKCR is a compilation of HKCU\Software\Classes and HKLM\Software\Classes. If a given value exists in both of the subkeys above, the one in HKCU\Software\Classes is used.[4]
2.) HKEY_CURRENT_USER
Abbreviated HKCU, HKEY_CURRENT_USER stores settings that are specific to the currently logged-in user. The HKCU key is a link to the subkey of HKEY_USERS that corresponds to the user; the same information is reflected in both locations. On Windows-NT based systems, each users' settings are stored in their own files called NTUSER.DAT and USRCLASS.DAT inside their own documents and settings subfolder.
3.) HKEY_LOCAL_MACHINE
Abbreviated HKLM, HKEY_LOCAL_MACHINE stores settings that are general to all users on the computer. On NT-based versions of Windows, HKLM contains four subkeys, SAM, SECURITY, SOFTWARE and SYSTEM, that are found within their respective files located in the %SystemRoot%\System32\Config folder. A fifth subkey, HARDWARE, is volatile and is created dynamically, and as such is not stored in a file. Information about system hardware drivers and services are located under the SYSTEM subkey, whilst the SOFTWARE subkey contains software and windows settings.
4.)HKEY_USERS
Abbreviated HKU, HKEY_USERS contains subkeys corresponding to the HKEY_CURRENT_USER keys for each user registered on the machine
4.)HKEY_USERS
contains subkeys corresponding to the HKEY_CURRENT_USER keys for each user registered on the machine
HKEY_CLASSES_ROOT
The HKEY_CLASSES_ROOT subtree contains two types of data:
Data that associates file types with programs. The file type subkeys in HKEY_CLASSES_ROOT have the same name as the file name extension for the file type, such as .exe. File type associations are stored in the registry, but you should use Windows Explorer to change them. In Windows Explorer, from the Tools menu, click Folder Options, and then click the File Types tab.
Configuration data for COM objects, Visual Basic programs, or other automation. The configuration subkeys use either the program IDs (such as for COM, Visual Basic, automation, and scripting) or parent keys for other classes of information (such as for CLSID, Interface, TypeLib, AppId, and so on).
HKEY_CURRENT_USER
HKCU (HKEY_CURRENT_USER) settings introduce a different set of problems in deployment. These registry settings are stored in each individual user profile and that makes getting them to everyone a bigger problem than simply installing files and registry settings to a machine. Most well written applications that use HKCU to store user preferences will detect the hive and default values don?t exist when first run. The application should then create and populate its HKCU information with defaults automatically. However, some applications that are not written so well may need to have its desired settings present in order to function properly. More often pushing HKCU settings becomes a task for those wishing to deploy a nonstandard set of default user settings with an application. There are two basic ways to complete this task, through a logon script or through system policy settings.
HKEY_LOCAL_MACHINE
HKEY_LOCAL_MACHINE is the keeper of the configuration data for a computer. Both hardware and software are tracked in this key, along with other varied information about both entities. For example, not only does this key include specific information about the configuration of your hardware and peripherals, but it also stores all the available choices for making changes (the keyboard language options fill up several pages if you print them out). These are the choices you see as you configure your machine through the Control Panel. This key is enormous.
In principle, this key is pretty much the same for Windows 95, Windows 98, and Windows NT 4, although you’ll find some differences as you drill down. The subkeys are a bit different, but in essence, in both operating systems, this is where to find everything you ever wanted to know about a computer – perhaps more than you ever wanted to know
HKEY_USER
This entry allows you to hide local and network drives selectively. When you hide a drive, the iconrepresenting the drive does not appear in My Computer, Explorer, or Network Neighborhood, and the drive letter does not appear as a choice in the Open menu of applications. This allows you to protect certain drives, including the floppy disk drive, from misuse or to direct users to save their work to certain drives
ROD LEO ANDREW S. FLORES
teedongz@yahoo.com
.......omandac
1.) HKEY_CLASSES_ROOT
Abbreviated HKCR, HKEY_CLASSES_ROOT stores information about registered applications, including associations from file extensions and OLE object class ids to the applications used to handle these items. On Windows 2000 and above, HKCR is a compilation of HKCU\Software\Classes and HKLM\Software\Classes. If a given value exists in both of the subkeys above, the one in HKCU\Software\Classes is used.[4]
2.) HKEY_CURRENT_USER
Abbreviated HKCU, HKEY_CURRENT_USER stores settings that are specific to the currently logged-in user. The HKCU key is a link to the subkey of HKEY_USERS that corresponds to the user; the same information is reflected in both locations. On Windows-NT based systems, each users' settings are stored in their own files called NTUSER.DAT and USRCLASS.DAT inside their own documents and settings subfolder.
3.) HKEY_LOCAL_MACHINE
Abbreviated HKLM, HKEY_LOCAL_MACHINE stores settings that are general to all users on the computer. On NT-based versions of Windows, HKLM contains four subkeys, SAM, SECURITY, SOFTWARE and SYSTEM, that are found within their respective files located in the %SystemRoot%\System32\Config folder. A fifth subkey, HARDWARE, is volatile and is created dynamically, and as such is not stored in a file. Information about system hardware drivers and services are located under the SYSTEM subkey, whilst the SOFTWARE subkey contains software and windows settings.
4.)HKEY_USERS
Abbreviated HKU, HKEY_USERS contains subkeys corresponding to the HKEY_CURRENT_USER keys for each user registered on the machine
.......omandac
1.) HKEY_CLASSES_ROOT
Abbreviated HKCR, HKEY_CLASSES_ROOT stores information about registered applications, including associations from file extensions and OLE object class ids to the applications used to handle these items. On Windows 2000 and above, HKCR is a compilation of HKCU\Software\Classes and HKLM\Software\Classes. If a given value exists in both of the subkeys above, the one in HKCU\Software\Classes is used.[4]
2.) HKEY_CURRENT_USER
Abbreviated HKCU, HKEY_CURRENT_USER stores settings that are specific to the currently logged-in user. The HKCU key is a link to the subkey of HKEY_USERS that corresponds to the user; the same information is reflected in both locations. On Windows-NT based systems, each users' settings are stored in their own files called NTUSER.DAT and USRCLASS.DAT inside their own documents and settings subfolder.
3.) HKEY_LOCAL_MACHINE
Abbreviated HKLM, HKEY_LOCAL_MACHINE stores settings that are general to all users on the computer. On NT-based versions of Windows, HKLM contains four subkeys, SAM, SECURITY, SOFTWARE and SYSTEM, that are found within their respective files located in the %SystemRoot%\System32\Config folder. A fifth subkey, HARDWARE, is volatile and is created dynamically, and as such is not stored in a file. Information about system hardware drivers and services are located under the SYSTEM subkey, whilst the SOFTWARE subkey contains software and windows settings.
4.)HKEY_USERS
Abbreviated HKU, HKEY_USERS contains subkeys corresponding to the HKEY_CURRENT_USER keys for each user registered on the machine
1.) HKEY_CLASSES_ROOT
Abbreviated HKCR, HKEY_CLASSES_ROOT stores information about registered applications, including associations from file extensions and OLE object class ids to the applications used to handle these items. On Windows 2000 and above, HKCR is a compilation of HKCU\Software\Classes and HKLM\Software\Classes. If a given value exists in both of the subkeys above, the one in HKCU\Software\Classes is used.[4]
2.) HKEY_CURRENT_USER
Abbreviated HKCU, HKEY_CURRENT_USER stores settings that are specific to the currently logged-in user. The HKCU key is a link to the subkey of HKEY_USERS that corresponds to the user; the same information is reflected in both locations. On Windows-NT based systems, each users' settings are stored in their own files called NTUSER.DAT and USRCLASS.DAT inside their own documents and settings subfolder.
3.) HKEY_LOCAL_MACHINE
Abbreviated HKLM, HKEY_LOCAL_MACHINE stores settings that are general to all users on the computer. On NT-based versions of Windows, HKLM contains four subkeys, SAM, SECURITY, SOFTWARE and SYSTEM, that are found within their respective files located in the %SystemRoot%\System32\Config folder. A fifth subkey, HARDWARE, is volatile and is created dynamically, and as such is not stored in a file. Information about system hardware drivers and services are located under the SYSTEM subkey, whilst the SOFTWARE subkey contains software and windows settings.
4.)HKEY_USERS
Abbreviated HKU, HKEY_USERS contains subkeys corresponding to the HKEY_CURRENT_USER keys for each user registered on the machine
1.) HKEY_CLASSES_ROOT
Abbreviated HKCR, HKEY_CLASSES_ROOT stores information about registered applications, including associations from file extensions and OLE object class ids to the applications used to handle these items. On Windows 2000 and above, HKCR is a compilation of HKCU\Software\Classes and HKLM\Software\Classes. If a given value exists in both of the subkeys above, the one in HKCU\Software\Classes is used.[4]
2.) HKEY_CURRENT_USER
Abbreviated HKCU, HKEY_CURRENT_USER stores settings that are specific to the currently logged-in user. The HKCU key is a link to the subkey of HKEY_USERS that corresponds to the user; the same information is reflected in both locations. On Windows-NT based systems, each users' settings are stored in their own files called NTUSER.DAT and USRCLASS.DAT inside their own documents and settings subfolder.
3.) HKEY_LOCAL_MACHINE
Abbreviated HKLM, HKEY_LOCAL_MACHINE stores settings that are general to all users on the computer. On NT-based versions of Windows, HKLM contains four subkeys, SAM, SECURITY, SOFTWARE and SYSTEM, that are found within their respective files located in the %SystemRoot%\System32\Config folder. A fifth subkey, HARDWARE, is volatile and is created dynamically, and as such is not stored in a file. Information about system hardware drivers and services are located under the SYSTEM subkey, whilst the SOFTWARE subkey contains software and windows settings.
4.)HKEY_USERS
Abbreviated HKU, HKEY_USERS contains subkeys corresponding to the HKEY_CURRENT_USER keys for each user registered on the machine
1.) HKEY_CLASSES_ROOT
Abbreviated HKCR, HKEY_CLASSES_ROOT stores information about registered applications, including associations from file extensions and OLE object class ids to the applications used to handle these items. On Windows 2000 and above, HKCR is a compilation of HKCU\Software\Classes and HKLM\Software\Classes. If a given value exists in both of the subkeys above, the one in HKCU\Software\Classes is used.[4]
2.) HKEY_CURRENT_USER
Abbreviated HKCU, HKEY_CURRENT_USER stores settings that are specific to the currently logged-in user. The HKCU key is a link to the subkey of HKEY_USERS that corresponds to the user; the same information is reflected in both locations. On Windows-NT based systems, each users' settings are stored in their own files called NTUSER.DAT and USRCLASS.DAT inside their own documents and settings subfolder.
3.) HKEY_LOCAL_MACHINE
Abbreviated HKLM, HKEY_LOCAL_MACHINE stores settings that are general to all users on the computer. On NT-based versions of Windows, HKLM contains four subkeys, SAM, SECURITY, SOFTWARE and SYSTEM, that are found within their respective files located in the %SystemRoot%\System32\Config folder. A fifth subkey, HARDWARE, is volatile and is created dynamically, and as such is not stored in a file. Information about system hardware drivers and services are located under the SYSTEM subkey, whilst the SOFTWARE subkey contains software and windows settings.
4.)HKEY_USERS
Abbreviated HKU, HKEY_USERS contains subkeys corresponding to the HKEY_CURRENT_USER keys for each user registered on the machine
.) HKEY_CLASSES_ROOT
Abbreviated HKCR, HKEY_CLASSES_ROOT stores information about registered applications, including associations from file extensions and OLE object class ids to the applications used to handle these items. On Windows 2000 and above, HKCR is a compilation of HKCU\Software\Classes and HKLM\Software\Classes. If a given value exists in both of the subkeys above, the one in HKCU\Software\Classes is used.[4]
2.) HKEY_CURRENT_USER
Abbreviated HKCU, HKEY_CURRENT_USER stores settings that are specific to the currently logged-in user. The HKCU key is a link to the subkey of HKEY_USERS that corresponds to the user; the same information is reflected in both locations. On Windows-NT based systems, each users' settings are stored in their own files called NTUSER.DAT and USRCLASS.DAT inside their own documents and settings subfolder.
3.) HKEY_LOCAL_MACHINE
Abbreviated HKLM, HKEY_LOCAL_MACHINE stores settings that are general to all users on the computer. On NT-based versions of Windows, HKLM contains four subkeys, SAM, SECURITY, SOFTWARE and SYSTEM, that are found within their respective files located in the %SystemRoot%\System32\Config folder. A fifth subkey, HARDWARE, is volatile and is created dynamically, and as such is not stored in a file. Information about system hardware drivers and services are located under the SYSTEM subkey, whilst the SOFTWARE subkey contains software and windows settings.
4.)HKEY_USERS
Abbreviated HKU, HKEY_USERS contains subkeys corresponding to the HKEY_CURRENT_USER keys for each user registered on the machine
from: anthonyvann
*Hardware firewall -
A Hardware Firewall is a device to which you connect your computers or network in order to protect them from unauthorized access.
*Software firewall -
A Software Firewall is a piece of software that isinstalled on your computer in order to protect it from unauthorized access.
*Hacker Wacker -
This program secretly logs what site you visit, what programs you run and can block access to certain functions.
Æ**joe**Æ
sotfware firewall?
firewall Software is your security guard that stands between your home computer and the Internet. It lets you control which traffic your computer accepts. It also controls which of your programs can connect to the Internet. With a firewall, you define which connections between your computer and other computers on the Internet are allowed and which are denied. There are free firewall products that provide the capabilities you need to secure your home computer. Commercial versions have even more features that can further protect your computer.
Firewall Software is an important part of your home computer’s security defenses.
hardware firewall?
A hardware firewall is a small metal box filled with plug openings, or ports. You hook your computer network into the box then set it up on your computer, just as you would a new printer or other peripheral.
Because it's not physically on your machine, a hardware firewall is somewhat less vulnerable than a software firewall. You could look at a hardware firewall as a mini computer, and the price of hardware firewalls reflect this difference. Hardware firewalls are typically owned by larger businesses.
hacker wacker?
This program is a key logger. It runs on your computer at all times and records all the keyboard keys you press. Although keyloggers could have some benefits (allowing you to recover work that was lost), in practice they are used to spy on people. Since they capture everything you type, your passwords, credit card numbers, and personal correspondence can all be recorded by key loggers. Some key loggers are designed only for spying, trying to make it difficult for the user to discover the program is running.
1.HKEY_CLASSES_ROOT is the same for Windows 95, Windows 98, and Windows NT 4. This section of the registry is in charge of three important tasks:
Keeping track of the file extensions and their associations with file types. A group of file extension subkeys is devoted to this purpose.
Keeping track of the programs associated with the file types that are registered in the system. A group of class-definition subkeys is devoted to this information.
Keeping track of information about OLE objects and documents. Within the subkey \CLSID are the class identifier subkeys that are devoted to tracking this information.
2.HKEY_CURRENT_USER stores settings that are specific to the currently logged-in user. The HKCU key is a link to the subkey of HKEY_USERS that corresponds to the user; the same information is reflected in both locations. On Windows-NT based systems, each users' settings are stored in their own files called NTUSER.DAT and USRCLASS.DAT inside their own documents and settings subfolder.
3.
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