Bad news....the hard drive on my computer won't boot Windows anymore so I'm on my mom's laptop and am limited on space so to wangho: I don't think I'll be able to do much because of this. My mom doesn't want me filling up her hard drive so I *may* not be able to do much. To everyone: I'll be building a new computer soon. It's going to be better than the computer I have that used to work.....
Due to possibilities your hard disk is physically disabled are very low you can try using bootable CD or DVD, go to file manager, delete Windows directory, install fresh copy.