The Turn off hardware buttons machine setting should be configured correctly. Turns off Tablet PC hardware buttons. If you enable this policy, no actions will occur when the buttons are pressed, and the buttons tab in Tablet PC Control Panel will be removed. If you disable this policy, user and OEM defined button actions will occur when the buttons are pressed. If you do not configure this policy, user and OEM defined button actions will occur when the buttons are pressed. Fix: (1) GPO: Computer Configuration\Administrative Templates\Windows Components\Tablet PC\Hardware Buttons\Turn off hardware buttons (2) KEY: HKLM\SOFTWARE\Policies\Microsoft\TabletPC\TurnOffButtons