One day, the laptop wouldn't turn on, so I installed windows 7. The first 2 times, it said the files were corrupt, and failed. But the third time, it finally worked, and I got it all working. Then I restarted it, and it wouldn't go past the Windows loading screen. I got a Best Buy PC-Check CD, and it passed every category except the hard drive read. The hard drive is a 2.5" IDE, so I can't connect it to my main desktop. Can I fix this, or do I need a new hard drive?