Devcon.exe failed
Install driver: devcon.exe dp_add FTDI.D2xx.WinRT.inf After copying the .inf and .cat files to C:\Windows\System32 Should get something like : Driver Package 'oem2.inf' added. back; Reboot: shutdown /r /t 0 ; Get driver status: devcon status "USB\VID_0403&PID_6001" List installed OEM drivers: devcon dp_enum; Uninstall driver: devcon dp_delete