Same problem, have all the latest updates installed. It can come randomly, this time it came while using YouTube and last time it came while the program BOINC used my processing power. The common thing with these programs seems to be that both uses the graphic card.
Computer specifications:
CPU: Intel Core i7 4771
RAM: 32,0GB Dubbel-Channel DDR3 (11-11-11-28)
Moderkort: ASRock Z87 Extreme6
Graphics: 4095MB NVIDIA GeForce GTX 1070
Antivirus: Bitdefender Total Security