Also, chkdsk said my old hard drive was fine (it was making loud noises, random files became unopenable, BSOD all over the place), but after running the diagnostic test from Fujitsu it said the the drive had bad sectors out the wing-wang and that the head was going bad. It also gave me an error code. I contacted Dell and told the guy the error code. He said he didn't even have to look it up. He immediately knew the drive was F'd. So I recommend using the diagnostics test from the hard drive manufacturer. If you can tell us the make and model of your hard drive (or at least the manufacturer) I will find the appropriate one for you.