I've had this strange problem for a while. I tried googling but I ended up with no luck. This is how it started:
whenever I turned my computer on, the first thing I had to do was change my "power plan" (the one from battery icon thingy) to "power saver". If i left it at balanced, it crashed within 1 minute or less. If i switched to "power plan" it ran fine. Then I could play the game and in between the game if I alt+tab'ed and switched to "balanced power option" then everything would be fine. The computer would not crash.
Also if I left the computer idle (w/o doing anything; no game etc) then it would crash.
It's not the heat issue. There is no virus either.
anyway, the issue progressed with time. eventually it became like flipping a coin. even if i switched to "power saver" on startup, it would still crash often. usually it took like 5-6 tries before it "worked". then business as usual: play in power saver for a bit and switch to balanced in between the game.
recently, the computer doesn't even start. i would be lucky to get to login screen now. i can only run in safe mode.