I've seen all other articles on it, none of the previous solutions have worked.
I know what the device is, it's a Intel Bluetooth chip, the default Microsoft driver kept losing connection to my PS4 controller, so I installed the bluetooth driver then it started reporting in device manager as an unknown device.
I tried things such as uninstalling the drivers, installing older ones....
Only thing I haven't done is a clean install
MB Is a GA-z9N-Wifi, I know the bluetooth card is still working as it's attached to the wifi card and the wifi still works fine.