The Turn off Autoplay for non-volume devices machine setting should be configured correctly. If this policy is enabled, autoplay will not be enabled for non-volume devices like MTP devices. If you disable or not configure this policy, autoplay will continue to be enabled for non-volume devices. Fix: (1) GPO: Computer Configuration\Administrative Templates\Windows Components\AutoPlay Policies\Turn off Autoplay for non-volume devices (2) KEY: HKLM\Software\Policies\Microsoft\Windows\Explorer\NoAutoplayfornonVolume