i need help uninstalling win xp. i tried the uninstall win xp in the add/remove program menu but i get an error saying "win xp cannot be uninstalled because the hard drive partition configuration has changed since upgrading. setup requires the original hard disk configuration to properly uninstall to your previous version of windows." now how do i uninstall it? i had win98 then upgrade it to win xp and chage a partition into ntfs. now i want win 2000 on it.