If USB Connection Fails

The machine is not automatically recognized.

The USB cable is not connected properly.

Disconnect the USB cable, and then turn off the main power switch. Turn the machine on again. When the machine has fully booted up, reconnect the USB cable.

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.