Windows 10: issues with Kuu A8S PRO, sound doesn't work whatsoever. It says "No audio output device is...

I have tried dozens of troubleshoots and fixes for weeks now, and nothing seems to work. Can someone help me fix this? OS is W10.

:)

 

audio output device

My surface pro seven suddenly does not have sound. It says there is no audio output driver. I talked to someone at microsoft and they had me uninstall and reinstall updates. I cannot reinstall an audio driver because the device manager list of devices does
not even show sound as an option anymore. The rep I talked to finally said he had no more suggestions.

I am not sure how to fix this or why it happened.

 

The sound icon says "No Audio Output Device Is Installed"

Since the last Windows 10 update I have no sound. (I am assuming this because last week was fine)

The sound icon says "No Audio Output Device Is Installed"

I tried the troubleshooter but AudioPlaybackDiagnostic not working. (A problem ocurred preventing the troubleshooter from working).

In Device Manager/Other Devices;

• Multimedia Audio Controller 'The drivers for this device are not installed (Code 28).There are no drivers for this device. Update = no results
• PCI Simple Communications Controller=same issue

In Device Manager/ Sound, video and game controllers

• NVIDIA Virtual Audio Device (wave extensible)(WDM); Windows cannot verify the digital signature
• NVidia GeForce 210; This device is working properly

In Device Manager/ System devices/ High Definition Audio Controller;

• Windows cannot verify the digital signature . This is a Windows driver Ver. 10.0.10586.0 Date; 10/29/2015

I have uninstalled / installed drivers with no change.

Also; in Control Panel / Devices and Printers, the folder is empty
but my printers still work. Add a device function = 'No Device Found'

What can I do next? Do I reinstall the free upgrade to Windows 10? If so, how?

 

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?