I dont think it could be that, internet was off while I did the change, I dont think anything could have gotten in.
At least I am lucky, I got a new hard drive yesterday, so I can backup all of my stuff right now. I managed to burn myself a copy of XP anyway.
Edit: Windows XP Repair option failed, I was wondering if there is a good way to copy files so I dont have to bother with "this file is currently in use" while backing up my C: drive.