✔ 最佳答案
Try this. It will erase all of your files, but assuming your hard drive isn't failing you should be able to get your computer working again this way.
Put in your XP install disc. When you have the option to go into Recovery Console, hit R to do that. When you're in the Recovery Console, type the following:
format C: /fs:ntfs
Then hit enter. This will format your hard drive. It's going to take a while, but it zeroes out your hard drive (meaning all the patterns of 1s and 0s are converted to just 0s, creating a blank disk) and formats it as NTFS.
When it's done type exit and hit enter. Your computer will reboot. Use the XP install disc to install Windows like you normally would.