back up registry first !!!

posted under by nandu reddy
Backing up the Windows registry
Before editing the registry via the Registry Editor, you should back up the registry.
You can create a backup using Windows XP's Backup Utility by selecting the System State option. Many third-party backup applications will also back up the Windows registry along with your data files. Furthermore, you can also use the Console Registry Tool for Windows (enter reg /? At a command prompt for more information) or create a Restore Point.
To back up an individual key before making changes to the values it contains, select the key in the Registry Editor, pull down the File menu, choose the Export command, give the file a name, select a save location, and click save. The end result is a REG file that you can use to easily undo your changes—just locate and double-click the file.

How the Windows registry is organized ???

posted under by nandu reddy
How the Windows registry is organized ???
The Registry Editor presents the registry in a folder tree structure that should be familiar to most Windows users. Although the registry doesn't contain actual folders, this display format allows us to easily navigate and manipulate registry.
Each folder is called a key and each key can contain other keys and values. The keys provide the organization structure and the values contain the actual configuration data. Keys appear in the Registry Editor's left pane and values appear in the right pane.
The registry contains five main, or root, keys. Each key contains specific types of information.
• HKEY_CLASSES_ROOT contains information about file types.
• HKEY_CURRENT_USER contains copies of data stored in HKEY_USERS about the user that is currently logged on.
• HKEY_LOCAL_MACHINE contains information about all the hardware and software installed on the computer.
• HKEY_USERS contains information about all the system's user accounts.
• HKEY_CURRENT_CONFIG contains copies of the information from all the other root keys that pertain to the currently running session.

registry !!!

posted under by nandu reddy

What the Windows registry is ???
The registry is essentially a database of Windows' configuration settings. It contains information on each user with an account on the local system, on all internal and external hardware, on installed programs, and on property settings. Windows continually references the registry during operation. When you change Windows configuration setting, the registry stores those changes. For example, most changes you make through the Control Panel or local Group Policy Editor (Gpedit.msc) are stored in the registry.
You manually view and modify the registry via the Registry Editor. To launch the Registry Editor click Start Run, type Regedit in the Open text box, and click OK. Windows NT and Windows 2000 provide two different registry editing tools Regedit and Regedt32. Windows XP and Server 2003 provide a version of Regedit which has the functionality of both tools.

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