when you ever redo your system or other everything is wipe out totally.
sounds cards and video cards need to be re-instill.
it don't save all the software or drivers at all, you may even get error something did not get wipe out totally.
you really only had to do is unstill all them windows updates then re-instill like new without redoing the whole system.
bit you never try this first, could have save you a lot of headackes
link:
http://www.novahq.net/forum/showthre...threadid=29775
live and learn right, this would have save all your software and drivers totally