This is probably a fail in the hard drive, and there is no simple way of fixing the hard drive itself, if there is a way at all. You can pick up better, new ones off places like Amazon and eBay which will work just fine on your PS3. If you want a guide to changing your PS3 hard drive,
You must login or register to view this content. is a guide for fat PS3's and
You must login or register to view this content. is one for slim PS3's.