Blue Screen at random moments

[Kraq]

I've gotten quite a few, not sure if they are different.
I just changed settings so it wouldn't restart a couple hours ago and got the blue screen.

The main parts:

PAGE_FAULT_IN_NONPAGED_AREA

*** STOP: 0x00000050 (0x97870000, 0x00000000, 0x805AD255, 0x00000000)

 

[Route44]

Please tell us your system speck including OS and security software. Have you changed anything about your PC, i.e. hardware, software? Corrupted memory can cause this random behavior but at this moment this is only a guess.