Hi! since one of you is talking of root:\Program Files and another of root:\Windows\SoftwareDistribution , I wan t a clear cut answer tomy questions, Plz help..

Which is the exact folder (post-SP2) ?

How do I back up it? Can I copy the folder to a secondary hard drive, reinstall WINDOWS, then SP2 and then those updates?

Further, how do I install those updates, after reinstalling my PC?