I have GTX 560 non ti that works 326.29 no problem, I was about to install 326.19 but they come out new 326.29 so I take .29 over .19 BAM ! ** Some of you still have issues with .19/.29 ** Try clock down with your GPU/CPU. Try loose your ram memory or set to default. Your PSU might be problem. Uninstall old drivers numbers of times might still stuck inside of registry I know about this. Try go safe mode to use driver sweeper and CCleaner. Try downgrade Nvidia Physx version, I am using Legacy 22.214.171.1241, haven't try install la new version Physx. Uninstall KB2670838 in Control Panel > Program and Features > View installed updates. Not sure about IE10 cause problem, Mine still IE9 for now. Your Windows 7 or 8 have to be clean installed on pc plus all updates except KB2670838. Sound card or onboard, Try disabled to see if problem go away or update sound driver. I have sound onboard with Realtek High Definition Audio driver ver 126.96.36.19935. Preinstalled PC and built your own PC are not same thing.c1: My event viewer have zero problem that I was able to fixed it and restart pc and show no error at all. almost perfect. If your event viewer log too many errors, try fix it. If your pc freeze, crashes, etc...that could be PSU, RAM, OC too much cause TDR. Try clean inside your PC, GPU etc...lots dust can cause pc problem that's true. if fails all above, I know it's not option to format Windows but try Repair ?