During our latest show we were discussing how to use System Restore…here are links to more information:
How to restore the operating system to a previous state in Windows XP
Article ID : 306084
http://support.microsoft.com/kb/306084
Article ID : 306084
http://support.microsoft.com/kb/306084
How to start the System Restore tool at a command prompt in Windows XP
Article ID : 304449
http://support.microsoft.com/kb/304449/
Applies to all editions of Windows Vista.
Start your computer in safe mode with command prompt.
At the command prompt, type rstrui.exe, and then press ENTER.