I bought a Gateway in February, and in April it started turning off randomly on its own until one day it turned off for good, and eventually after restarting it various times I received the BSOD. I brought it to Geek Squad because I bought it at best buy, and they replaced the hard drive at no cost. Now it's happening again (right on schedule, two months later).. and I haven't received the BSOD yet, but it's giving me the warning signs like what happened before.
Not sure if this is helpful at all but the Hard Drive they replaced was a Western Digital 1 TB HD.
I'm running Windows Vista Home Premium x64.. I also have ran Spybot Search & Destroy in safe mode, and it was able to fix all of the problems it found. I also have NOD32 Antivirus.
One more issue - I can't download anything, so if you're going to forward me to something to download I won't be able to do it. Anytime I download something it disappears, and I've searched the entire drive and nothing. It shows it download, but won't let me open the containing folder or anything. I've even changed the destination of download to my desktop, and still I see it there, then I see it vanish. Sometimes I'll get a "partially" downloaded icon, that I can't delete because it says it's nonexistent, too. Oh fun.
Thank you for your assistance, if you need any more information please let me know.