For the first few months a had my desktop it ran games beautifully but now it crashed almost every game I attempt to run on it Specs: Athlon II (4th core unlocked 3.2 GHz), 6 GB DDR3 RAM, HD raedon 7750, 450 watt PSU, ASrock 770i cafe Motherboard. any ideas of what might be causing this (I have updated Graphics and Win7 Drivers)
It's either the graphics card (which I doubt; because it usually gives an error message when it fails), or corrupted Windows. I'd suggest reinstalling windows to see if it fixes the issue. If it doesn't, something is wrong with hardware for sure.