No more BSOD but this happened again at least 3 times more, but now I noticed when exactly does it happen. Two of three times happened after I closed my game, but on all three times I tried to use the keyboard to type something in the browser. I was able to use the mouse without problem and even open/close programs, but as soon as I tried to type something everything froze like it happened in the image, could this be a keyboard issue then? And if so, why does it only happen after the RAM (and virtual memory) was heavily used?
Oh and just to clarify, after the freeze I can force-restart my PC and everything works fine again, so it doesn't lock me out.