Lost all audio after May, 2021 Windows 10 update!!!!

Anonymous
2021-05-17T06:50:28+00:00

At some point, after the May update I lost all PC audio! I've done all the 'no sound' troubleshooting suggestions from Microsoft and everywhere else. I reinstalled all audio drivers, you name it. I even shut down my MSI onboard HD audio in bios and purchased a

Soundblaster Audigy RX sound card, No dice. bought Driver Booster Pro and updated them drivers. Wasted cash!

It's as if the sound just can't get to my output jacks. Foobar doesn't work, NO audio!! You can see the level meters pulse when you test the sound devices. When I unplug the connectors going to my preamp, they pop and buzz so I know the cables to the analog stuff are hot.

I NEED HELP AND I NEED IT FAST!! I'm starting to TWITCH!! I believe it's Microsoft's doing.

Windows for home | Windows 10 | Devices and drivers

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  1. Anonymous
    2021-10-31T13:51:28+00:00

    After try everything... now, SOLVED MY PROBLEM!!!!

    Here is the trick:

    1. cmd.exe --> regedit
    2. Go to: Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class
    3. Search for: {4d36e96c-e325-11ce-bfc1-08002be10318}
    4. Find the entry that has a key: Class MEDIA
    5. DO A BACKUP for that register.
    6. Delete the key: Upperfilters ksthunk
    7. Reboot
    8. If you haven't change anything on audio drivers (trying to fix by audio drivers early), the sound will now works.

    Hope its helps!!

    Regards

    I tried that. The entry didn't exist.

    And I tried the .REG import. That didn't work.

    What worked was reverting to the earlier version of Windows.

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  2. Anonymous
    2021-10-31T11:34:56+00:00

    After try everything... now, SOLVED MY PROBLEM!!!!

    Here is the trick:

    1. cmd.exe --> regedit
    2. Go to: Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class
    3. Search for: {4d36e96c-e325-11ce-bfc1-08002be10318}
    4. Find the entry that has a key: Class MEDIA
    5. DO A BACKUP for that register.
    6. Delete the key: Upperfilters ksthunk
    7. Reboot
    8. If you haven't change anything on audio drivers (trying to fix by audio drivers early), the sound will now works.

    Hope its helps!!

    Regards

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  3. Anonymous
    2021-10-20T12:54:18+00:00

    Thank you so much!!! IT WORKS!!!!!! I was nearly planning to restore from the window upgrade!!!!

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  4. Anonymous
    2021-10-13T22:29:20+00:00

    I was just running through the same-old, same-old trying to fix this and when I searched Windows Update for drivers updates (I'm running the most recent ones), there was an optional update for Synaptic something, sorry I wasn't paying attention because I didn't expect results. However, downloaded, installed, restarted and the next thing I knew I had chime after chime as notifications popped up.

    I see Synaptic has to do with touchpad, so there might not be a connection, but if it's available, why not try it?

    Check for Updates (result says current)

    Optional Updates on result page (Synaptic)

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  5. Anonymous
    2021-10-06T14:02:07+00:00

    I have same issue, twice!

    One time early 2021 and i did the rollback by windows restore point, solved!

    And now (4 weeks ago) after windows 10 update (version 21h1) i cant do the rollback (no valid restore point available...)

    Now my Acer VN7-592G has no sound again... not fixed yet!

    I've tried some procedures:

    1. Reinstall drivers ( old by Acer and newer by newest Acer's and Realtek );
    2. Check Audio services and RPC service.. all ok, running;
    3. Fixed MMAudio regedit permissions...
    4. Fixed ConsoleSecurity registry entry... in my case the values was there, but i do...
    5. Update drivers with Driver booster...
    6. Did latests Windows 10 updates (this week)...

    Anyone has other procedure to solve this problem ?

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