Error code 51

CM_PROB_WAITING_ON_DEPENDENCY
This device is currently waiting on another device or set of devices to start. (Code 51)

Cause

The device is waiting on another device.

Solution

Select the devices that the device depends on using device control. If you can determine why such a device didn't start, you might be able to resolve it.

If you still have the same error, uninstall the device using device control and then scan your computer for hardware changes.