When I enable Hyper-V in Windows 8 or 8.1, it disables hardware acceleration (DXVA). Also games become unplayable. DXVA Checker without Hyper-V: http://prntscr.com/1q5ey6 DXVA Checker with Hyper-V http://prntscr.com/1q5f6j Video drivers: Mobility Catalyst 13.4 OS: Windows 8.1 Pro RTM x64 Other details of my laptop configuration you can see in profile. Has anyone encountered similar issue? And what can I do with it?