Sometimes plug-n-play USB devices that used to work perfectly on Windows stop being recognized or start behaving strangely. This could be caused by “ghosted” devices in the Windows Device Manager. Deleting all ghosted devices in the Windows Device Manager can sometimes correct these problems. Follow instructions in the Microsoft support article to reveal all ghosted devices, then delete each of them. Next time you plug one of those ghosted device in, Windows will make a fresh start in the process of detecting the device, possibly correcting the problem.
Link: Device Manager does not display devices that are not connected.
FOLLOW THESE DIRECTIONS AT YOUR OWN RISK.