Windows 10: Speaker audio no longer working after installing cumulative updates for Windows 11

I've followed all of the steps provided by Dell <https://www.dell.com/support/kbdoc/en-us/000197391/troubleshooting-audio-problems-in-windows-11> including running the troubleshooter, updating drivers, disabling enhancements, etc. Still can't get sound. ANy other ideas on how to get the speakers working again?

:)

 

Unlocked Realtek HD Audio Drivers Windows 7 & 8 (With Dolby Digital Live and DTS Interactive)

I think today's windows update(stable channel) solves d issue

Cumulative Update KB4020102 Windows 10 v1703 Build 15063.332

• Addressed issue where, after installing the Creators Update, audio output through external decoders no longer works.

 

Unlocked Realtek HD Audio Drivers Windows 7 & 8 (With Dolby Digital Live and DTS Interactive)

Maybe it is fixed. I just updated to 15063.332. when I click on test a sound, no error .

 

After update today, external HDMI monitor has no sound and speaker no longer listed as audio device

My Windows 11 22H2 updated today with

2022-09 Cumulative Update for Windows 11 Version 22H2 for x64-based Systems (KB5017389) and 2022-09 Cumulative Update Preview for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 for x64 (KB5017271).

Now my external HDMI sound is gone.

From task tar, click sound icon, only see Lenovo laptop's built-in speaker listed (Realtek Audio).

Before I can see my HDMI monitor's speaker listed there.

Shutdown laptop and leave external monitor on does not help. Disconnect HDMI cable, power off/on monitor did not help either.

Audio of Device Manager does not list external HDMI monitor's speaker listed there neither.

I especially suspect KB5017271 caused the problem. Was updated KB5017389 first and it seemed was fine with external HDMI monitor speaker (but not 100% sure) which was updated first.