Windows 10: Laptop Sound stopped working, usual fixes have already been tried and failed.

Yesterday, my laptop's sound stopped working, and my attempts to get it back seem to have made things worse.


So far, I have;
* Run the troubleshooter. It didn't take.
* Tried to update drivers manually. Likewise didn't take.
* Disabled the sound controller Realtek to re-enable it. This somehow removed it from the Device Manager listing and made it impossible to re-enable.
* Re-installed Realtek. This has left something de-syncronized, and different assist windows disagree on whether it is there or not.

During this process, I have restarted my computer about a dozen times, and it has not taken this as the opportunity to re-install missing components as most online instructions I've found say it should.
And given the current situation, I can't afford to not have audio.

Linked are screenshots of my current sound settings and my device manager. What should I attempt next to fix this?


https://imgur.com/a/6NBJNJ4

:)

 

Failed to play test tone (Sound stopped working) - The fix that worked for me.

This is actually submitted as a possible fix to the very frustrating issue of suddenly losing your sound.

This loss of sound might be due to a Windows update....

This is my story:

• Roughly 12-14Sep18 - Audio stopped while looking @ YT vids.
• All vols are fully up.
• There was a message saying if video (I think) doesn’t start, restart device.
• The on-screen Volume level METER still adjusted OK with laptop keys – but no sound.

NB: I later found that sound works OK when running in Ubuntu instead of Windows – proving my hardware to be OK.

• In Realtek HD Manager, testing sound was ineffective (the ‘TEST’ button greys when clicked, but nothing more happens – speakers should highlight when a test signal is received & played).
• In Sound Control Panel, Speakers/Properties/TEST speakers generates an error message
  
  "Failed to play test tone".
• In Sound Control Panel, no signal is registered from mic.

What I did (NONE of the usual standard replies had any effect on this issue).

1. Troubleshooting gave something like “Cannot access sound device…”
   
   – & “Not fixed”.
2. Restarted the Service - Windows Audio - no effect
3. Restarted the Service - Windows Audio Endpoint Builder - no effect
4. Uninstalled Realtek HD Audio (also ticking box to delete existing driver), then Re-started so that Windows would auto-re-install - no effect
5. Disabled all Enhancements - no effect
6. Used sfc /scannow - no issues found.
7. One suggestion related to settings in
   
   Computer Management/System Tools/Local Users & Groups/Groups
   
   – but Local users & Groups no longer exists in System Tools…. So this option no longer exists.

• Another suggestion I found was to restore the computer to a point prior to the sound failure.
  
  I PERFORMED THIS LAST OPTION AND MY SOUND WAS RESTORED.

This was such a frustrating issue – I hope the above info helps someone.

My restore point was also prior to some Windows updates, so when these are reinstated I might find that my sound fails again - but now I hope to be in a position for a quicker resolution.

 

Trouble with Sound on videos stopping?

Hi,

There are several factors that may cause this issue. To narrow down the concern, we’d like to ask a few questions.

• When did you start experiencing the issue?
• Have you made any changes prior to this concern?
• Are you getting an error message when the video stop playing?
• Have you tried to clear cached and delete cookies?

For now, we suggest that you follow the troubleshooting steps provided in this article:
Fix sound problems.

 

KB4025339 Fails Install 0x80070564

Thanks
I am trying Eagle 51's suggestions now. Windows Update troubleshooter found a bunch of errors and fixed all but one.The update is trying to download KB4025339 again. I'll see what happens. At step one troubleshooter finishes with one error unresolved "Potential Windows Update Database Error Detected-Not Fixed". Windows update stalled at 0%.

At step 2 same troubleshooter error. The KB finished a new download failed to install.
Did step 3 KB has downloaded but fails to install.

If Eagle's suggestion doesn't work I'll try EdTittel's suggestion

Tried bothe Eagle & Ed 's suggestions - do not work. Anyone else?

I have noticed that the latest update for my nvidia drivers has failed to update. Wondering about that!