If it was a 'recovery' CD, it most likely will not run on your new
computer.. many are BIOS locked, only installable on the machine with which
they were supplied.. OEM genuine MS CDs are tied to the old machine too.. a
full retail XP CD would be OK..
Your new machine may not have XP drivers available for all internal
devices.. check with the computer manufacturer first..
You might also want to check with the 'school' software authors for fixes
enabling the software to be run on Vista..
"Ebbie" <Ebbie@discussions.microsoft.com> wrote in message
>I bought a new desktop computer and it came with Windows Vista. My school
> software is not Vista compatible. I have a windows xp disk from an old
> computer I threw away. How do I switch from using Vista to XP. I know I
> to uninstall it but how do I do that?
MS MVP Windows Shell/User