Hmmm. I removed the lines referring to xp in boot.ini, and backed up the following folders: Programfiles, Windows og Documents and settings (leaving the profiles win 2k uses), then deleted them. It freed some space, but surely there must be lots of files that are just sitting there, doing nothing. How do I find out which os they belong to? Everything seems to be working as normal, and it does seem like I now have only on os, which is good at least.