When i'm using my bluetooth headphone, i accidently click "Set Default Device" in Realtek HD audio manager and then the audio just gone. I try to fix it by trying reinstall my bluetooth driver, it still connect to my headphone but the problem that it still didn't return my audio back. For a long time reinstall again and again. I figured out i got 2 problem:
+ While i uninstall my bluetooth driver, a pop up came out and said another bluetooth device or program is using my bluetooth driver
+ I search in my device manager and i realised a network adapter driver called "csrbtport_enumerated_device_00" didn't installed 
So im just start doubt that Realtek HD audio manager is the main problem why my driver messed up. So how i can stop Realtek using my driver?