I saw a Reddit post saying a bunch of people having issues with gaming after a few Windows updates. Idk if your problem is caused by them but Reddit user Jables31 (gotta give credit) explains what to do for the others - give this a try
1) Start 2) Type in Add Remove 3) Click Add or Remove Programs 4) Click "view installed updates" 5) Type in "kb2803821" in the search 6) Uninstall the item that comes up. 7) Reboot