Why does my y510p crashes when I play DX11 games?

Hello,

So, I bought a Lenovo y510p to my GF for 2 or 3 years ago, and since a year it continously crashes with everything what uses DX11. The machine is well cooled, I'm pretty sure it's not the temperature that causes the issue. Everything under DX11 is just works fine. She played Borderland for 10 hours without any FPS drops. I'm metting mad about it.

Please help.

I didn't find the right solution from the Internet.

References:-

http://www.tomsguide.com/answers/id-3214757/y510p-crashes-play-dx11-games.html

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Thanks