If USB Connection Fails

The machine is not automatically recognized.

The USB cable is not connected properly.

Turn off the power of the machine, reconnect the USB cable, and then turn it on again.

Windows has already configured the USB settings.

Check whether the computer has identified the machine as an unsupported device.

Open Windows' Device Manager, and then, under [Universal Serial Bus controllers], remove any conflicting devices. Conflicting devices have a [!] or [?] icon by them. Take care not to accidentally remove required devices. For details, see Windows Help.