Fortunately, ERUNT is a utility that is compatible with all versions of windows.
Making a System Restore Point, is also recommended, but not sufficient when working in the Registry.
Windows native Registry Backup does not, provide a full restorable copy of Registry, and that is why ERUNT is recommended.
http://www.larsheder...nline.de/erunt/
For an excellent overview and instruction of How to use ERUNT, see Ztruker's article:
http://forums.whatth...showtopic=99376
Edited by Ztruker, 03 December 2010 - 08:36 PM.