If you no longer wanted to use it as a RealSense depth sensing camera, you could probably turn it into just a webcam by going to the Imaging Devices section of the Device Manager (the drivers may also be an a 'Camera' section on some computers), then right-clicking on the RealSense 'Depth' and 'Virtual' drivers and selecting Uninstall. This would just leave the RGB driver behind. If a RealSense camera cannot function properly due to missing drivers, it tends to default to being treated as an ordinary RGB webcam by the computer.
But it might be easier - and keep your RealSense camera's full functionality - if you find your laptop screen's webcam instead in the Device Manager, right-click on it and select 'Disable' so that the laptop defaults to using the RealSense camera's RGB. You can un-disable the laptop camera at any time.
