^ I don't think it is some old install. My computer has been fine, this problem only turned up in the last month or so. I also don't have a XP cd lying around, so I am not going to reformat. It is also would to be a pain to get the 250+ gigs of crap on my hard drive to begin with.
I'm also not sure I could unplug the PSU without breaking something physically. I am a bit of a klutz.
I've also gone through the Event logs on my computer, and every time it starts up, it comes up with an error on the "Service Control Manager" thing every time it starts up. Could this potentially be the problem?