You can re-format hardrive to get rid of WinXP. After that installation of Win 2K Server shouldn't be a problem.

>Hi,
>
>I tried to install 2000 over XP but this message "installation of disabled because the version of Windows trying to install is an older version that the currently installed OS."
>
>After this my install option is disabled.
>
>Any suggestions on how I could install Win 2K Server over XP?