Software causes computer to crash

Hello, ever since the update to 6.6 I have had issues where the game would crash my computer during, and after games. I have had issues where the load screen would not work, but recently this is starting to scale to the point that it crashes my whole system. I have made sure that no other programs were in the background running outside of the necessary items. I have tried to reset the game launcher, and it added back the problem where it would freeze the computer for a minute then be usable again. I have been having this issue almost every time I've played in the draft versions. sometimes in ARAM too at the Victory/defeat screen.