Windows 10: Related to audio output in Laptop

Hi ,I'm having issue with the output sound of my laptop due to two options in my sound preferences and both of them are not able to provide me output of sound.

:)

 

no audio output device installed

I've tried every step that was suggested, still getting no audio output device installed.

 

My audio output devices have disappeared from my HP laptop.

I have an HP laptop running Windows 10. My audio output devices have disappeared. Not just no devices installed, but no devices listed in Device Manager. Tried troubleshooting and still no devices found. Tried connecting USB speakers, but those were not
detected either.

Suggestions?

 

No audio output device

Hello!
I have a common problem: my Windows 10 has No Audio Output Device.
System configuration:

• Lenovo Legion Y520-15IKBN (laptop)
• Windows 10 Pro, version 1909, build 18363.535;
• Current updates;

Device manager shows these audio devices:

• High Definition Audio Device (driver version 10.0.18362.356)
• Intel Display Audio (10.27.0.6)
• ASUS Xonar U3 (10.0.8.2164)

i.e. the problem persists even with an external (USB) audio device, recognized by the system.

I performed a sanity check on this issue. Sound works when I boot into Ubuntu live. Therefore, it is not a hardware problem, and is indeed a Windows problem.

Solutions that have not worked so far:

1. Audio troubleshooter (issues found: check audio device, nothing else)
2. Rolling back drivers
3. Uninstalling audio devices
4. Uninstalling any audio-related devices, incl. the likes of bluetooth speakers
5. Updating audio drivers (from both built-in drivers and from manufacturer's site)
6. Installing a generic audio device (installing a generic USB audio device does not succeed, and installing a generic Realtek device resulted in a BSOD)

Do you have any ideas for fixing this?