Well, forgot to say this but I used a trick from a video which stopped crashing my game, that worked but due to that I got to the problem I have now: my windows freezing. I just read the newest comments on the video, a lot of them said that they now got their computer sometimes freezing, exactly...
I used UserBenchmark and it gave me this result on the GPU Test
https://media.discordapp.net/attachments/798983019532779551/814130334705647686/unknown.png
My keys all still work, I can see the light of e.g NumLock still on my keyboard, same with the CapsLock and other keys like that. So my pc is still working. For sound I use a 3.5mm audio jack.
My current drivers are the latest AMD WHQL Drivers, I used to have the newest ones but switched back to these, still didn't fix the problem. About the sound, it just continues for a minute and then cuts off.
My pc freezes after playing some games for 10-15 minutes. This happens with all NFS Games, Bf1 and Bf5, CarX and Rainbow6. In addition, I can run Cs:Go without any problems. When it freezes the sound of e.g. music will still go on but I can't do anything as the screen is fully frozen, to get out...