On another computer,

It has two OS's installed, 98 and XP. I was on 98 and installed McAfee. Now when it restarts, and i choose to go to 98, it does this virus check where it says, Pass1 Pass2 etc. etc. etc., and it stops on Pass14 and doesn't go any further, HOWEVER, XP will load. How the hell do i fix this?
If i just delete the McAfee folder in XP, will it stop the virus checking? Or i guess, how do i uninstall a program thats on another OS?

i know this isn't a tech support forum, but i'm not gettin' any luck today.