first check your own system, ive played this game on different systems and i have multiple friends playing it no issue at all . and i wont ever install windows 10 as any high end user would say that its crap compared to windows 7. the small benefits that you do get with windows 10, you get 2 other compatibility problems. Just try to run the game with just 1 GPU and reinstall drivers and game if that doesn't help the problem then you can continue to complain/ ask for help
and just saying even the most modern games dont all support SLI or crossfire