Blue screen of death

[Christopher123]

Have had trouble playing most games more than 20 minutes before a crash. Can occur at close to PC being idle, but only after a much longer time (8+ hours). I know for sure it is not RAM problems as I have recently changed the sticks but the problem remained. No part of this system is overclocked.
I have attached the most recent five crash reports.

All help is greatly appreciated.

This is a custom build:
Motherboard: Gigabyte 78lmt-usb3
Power supply: 1000w ATX 1050
CPU: AMD 9590
RAM: 2x8GB DDR3 1866MHz HyperX Savage
GPU: Geforce GTX 960
OS: Win 7 Home Premium

 

[Tmagic650]

Have you checked for virus or other malware? The minidumps are pointing to a generic non-discript trouble

 

[barbarian1977]

Check temperature of cpu and gpu by the way

 

[Christopher123]

Have you checked for virus or other malware? The minidumps are pointing to a generic non-discript trouble

I have ran multiple scans, (spybot + AVG), but they both came up clean.
Am I wrong in saying the issue is a Windows kernal? (From what I understand, which is close to nothing). Does this mean reinstalling Windows could possibly provide a fix?
If not, could you suggest anything else?

 

[barbarian1977]

I would suggest you to reinstall. Could help

 

[Christopher123]

I would suggest you to reinstall. Could help

Right, will do. Thanks for your help.