Found the solution in a youtube video - heres the link if you find videos more helpful: [ame]
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If anybody still has issues with that, do the following:
- Press the Windows Key and search for "services"
- Mark one of the services and click on the letter "H" on your keyboard.
- Find and double click on the service "Human Interface Device Service"
- Click "Start" if it's not on or stop and start the service and click "Ok".
- Try using the media buttons now and see if it works.