'This issue is resolved using Known Issue Rollback (KIR). Most users affected by this issue are running games full screen or borderless windowed modes and using two or more monitors.'
Some users fixed this by rolling back the updates to older versions, but that's hardly a good long term fix.
The problems came from the cumulative updated pushed out to Windows 10, with users reporting that they were experiencing lower than expected frame rates and stuttering in games.
