As suggested I rebooted using the XP CD and re-installed XP leaving the original files there...so now when my system reboots it's like a newly installed OS. All of my installed programs are still there but no ICONs on my desktop and none of my system drivers such as sound, display or network adapters are active. as well I now have two Windows files one which says Windows and the other says Windows.0....How do I get my original boot up files to re-activate.