With windows 10 WindowsDesktopManager is integrated with the system. In windows 7 it could be disabled by turning off Aero. I do not know about windows 8 or 8.1 as I never used those versions. Now WDM causing massive slowness when doing pixel detection. For example the following code example: It's just verifying every other pixel in a 39x47 rectangle is black by checking it 8 times. Windows 10, takes 60.728 seconds to run. Windows 7, takes 0.2904 seconds to run. Hopefully this is the