Windows 10 serial port not working July 8, 2019 16 32 64 128 Windows 10 com port not working Windows 10 usb serial port not working Windows 10 usb com port not working Windows 10 lpt port not working Windows 10 port not opening Pci serial port not working windows 10 Windows 10 bluetooth com port not working Windows 10 com port not showing in device manager
