I unplugged all my USB devices bar the mouse and keyboard and tried to make my PC crash. Guess what? It was actually fine!
I left my PC to be tested overnight with OCCT and It's also OK. First time it's not crashed for a day. Could it be possible I have to many USB devices that require power and the power supply can't supply enough?
EDIT : Another thing I did was disable a load of services I didnt need for printing networks, and some other crap I dont use.
EDIT : Ok, so it's the 3rd day now, still no crash's. All I've done is disable some services and set the memory to run more on background operations instead of programms. Strange...