back up registry first !!!
posted under
windows registry
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.
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.
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