I have the same problem. I can play MP3, but I can't play wav files. The audio device keeps going to blank when I select nvidia then 'ok' to close and re-start 'sound and audio devices'.
I tried the advise by Wilhelmus, but it still does not work.
There was something in
'S-1-5-21-823518204-1770027372-682003330-24620'
I deleted and the default become (value not set) as advised.
But still the same error.
Please help. I've been without system sound for two months now, I'm getting agitated! I reinstalled the Nvidia device drivers but still the same error.
Is it because of conflict with other devices? I remember I did install a camera device recently. If it was the case, how do I uninstall the camera device?
