So today I bought Borderlands 2 on Steam. I began downloading it and at about 600mbs in my computer froze. No big deal, really. I restarted my PC and tried again. And once again, it froze. So I restarted again, and this time ran steam after deleting clientregistry.blob. This caused my download to cancel, so I was able to start steam. Steam works just fine, except that any time I try to download something the whole computer freezes and forces a hard restart. A few times it told me that there was a disk error, but after resetting again, there wasn't one. I read that it might be an NIC problem, but I've also read about other people who found it was a lack of thermal paste. Keep in mind, this ONLY happens when steam tries to download something. I can download from my browser and such perfectly fine! Does anyone have any idea why Steam downloads are causing my computer to freeze? Edit:This has NEVER happened with the other 20+ games I've downloaded. It's only happened with Borderlands 2. May try downloading another game to see if it also happens there. Will wait for responses first, though.