RSL, it involves backing up ALL data you want to be saved, because it will all be gone. Then somehow booting to DOS, using a boot floppy perhaps, then typing format c:, and waiting for a while, which will leave you with NOTHING on your hard drive. Then booting from the Windows CD and installing Windows. Then reconfiguring all your hardware if you need to. Then reinstalling every program you ever installed. It sucks. But then again, so does Windows. Hope you find a better solution so you don't have to do that.