Make sure you right click it and select the 'Scan for hardware changes' and 'Update Driver Software' > 'Search Automatically for Updated Driver' options before the next steps, especially if you have more than one 'Unknown Device' listed. Find any listings of 'Unknown Device' in the list of devices, likely under Human Interface Devices or Other Devices.Make sure your controller is turned off and the wireless receiver is plugged in to your PC before proceeding with the steps below:
