Hi,
You will be asked for a PIN when connecting your wireless Xbox One controller via Bluetooth on Windows 10 if your Bluetooth drivers are not updated. It is also possible that you have to reset the controller to remove the PIN. To resolve your concern, restart your controller by following the steps below:
- Power off the controller by pressing and holding the Xbox button on the controller for 6 seconds.
- Press the Xbox button again to power it back on.
- Connect your Xbox Wireless Controller to your PC using a USB cable or the Xbox Wireless Adapter for Windows.
You can also update your Bluetooth drivers by following the steps on this link.
Keep us updated with the results after performing the suggested solutions above.