I just installed Mach3/Pokeys on a Windows 10 32-bit mini-PC and found all sorts of weirdness. Motors were all over the place, when I jog to say +100, click "Go To Zero", it will go back but past the +0.000 to a negative value. Also started Mach3, the pop-up window to select the controller also doesn't come up .. just too many weird stuff. Used an XP PC, no problems so far !