Windows updates and leave buster

I am getting quite aggravated, I was in a ranked game and my computer turned off stating that it was a time where i was least active and it had to do an update. Got to 100%, failed, and undid the update. The next game the same thing happened, an hour later. Due to this i have a 10 minute leave buster lower priority queue, and I find that unfair, as I was not the deciding factor on the team losing. Each game when i came back i did work and almost turned the game around, it was my teammates giving up and not trying to win saying it was too late. I was only a support so they didn't even lose a carry teammate. Even tho i was gone for about 7 minutes each game, I still did more work than some of the people on my team while I was in the game. People who give up games and refuse to help and let themselves die because they don't care are the ones who should be punished, not because Windows 10 is screwing me over, my behavior is better than half of my teams. Yet I get punished.