Hi! I've got a huge problem with my PC, and that is that all of my games are crashing. So what happens is that i start the game, start playing, and after a while, from 5 minutes to like an hour, a couple of different things usually happens; the screen goes black audio keeps playing and when i try to move my friends say that i also move in the game, so the only problem seems to be that the screen goes black, when i alt+tab and try to open the game doesn't open. Sometimes, usually only in GTA IV, the screen freezes and the audio starts looping, when i alt+tab and go back in it's fixed, but only for 30 seconds and then the same thing happens again. I got extremly fed up of it, since it's not that fun to have a ''Gaming PC'' that you can't game on. So i reinstalled Windows, but that sure as hell didn't fix it. The games i tried after reinstalling that doesn't work is Garry´s Mod, Euro Truck Simulator 2, GTA IV and Insurgency, but before i reinstalled Windows Civ 5, Arma 3 or CS:GO didn't work either. I got all of the drivers needed (atleast i think so :unsure:). Specs in sig. If anyone got any type of advice i would highly appreciate it. I'm sure i forgot to write something important, so please tell me if i did.
Edit: Also sometimes after the game's freezed and I've shut it down, my entire computer is weird, it freezes every five seconds, the mouse cursor just stops and nothing works for a second.