So far I was using Windows CP SP2 computer. Yesterday bought a Vista Upgrade disk to update my XP. When I ran the disk, followed all required steps and installation starts but just before the end of the process, the system gets freeze. I tried doing this various times but the same result, it hangs at the final stage. This exactly happens when setup starts in Vista loading bar. First time I left my PC with this loading bar for about 2 hours and it remained right there as it is. When I tried booting, it got stuck at crcdisk.sys.
Any help please?