General

Help with a Blue Screen? X

So, this started about 2 weeks ago after my brother hooked up a faulty external hard drive to my comp. I didn't think it was the case, but I started getting mass BSoD only in normal mode. Whenever I'd go to Safe Mode it would be cool, which told me that it was either a file or something and my computer's hardware was actually working. I ended up doing a system restore to about 3 days before my brother's hard drive. That seemed to clear up the problem (0x0000005F)

All of a sudden, I'm getting blue screens again and I don't know why. The error message is now 0x00000050 and I've been looking it up on google for solutions, but I really haven't been able to find anything. Any suggestions or ideas anyone? =X

Help please?