No Audio After Windows 11 24H2 Update

[Percy25]

Exactly the same problem!  800 G4 windows 11, realised audio had vanished. I followed Paolo's advice and success!  Thank you.

[Gelo0101]

please can you tech me how to solve?

[FierySpark10]

I managed to fix one device with the issue by uninstalling all sound devices in Device Manager and rebooting.

[DinOne]

After all retries to solve our customer choose to reinstall with W11 24H2 al the Aio computers and sell them to employees because were out of date. But with this new instllations no Audio issues problem was fixed. Our customers bought all new AIO.

[Paolo_Peru]

Driver from the Update Catalog 

(Solution for models: Prodesk 600 G4, Elitedesk 800 G4 and others)

HP currently only offers the driver 8.65.319.200 Rev. A on its product page as "current". The HP audio controls were already not working properly under Windows 11 23H2 (the service started with a delay of several minutes or not at all).

I found several versions of the audio driver in the Microsoft Update Catalog Update : https://www.catalog.update.microsoft.com/Search.aspx?q=8.65.321.20&p=0.

He opted for the latest Synaptics – MEDIA – 8.65.321.20 audio driver with a size of 116.7 MB. This is how to install:

• Download the cab file from the Update Catalog and unzip it into a directory using 7Zip/Nanazip/WinRAR.
• Then in the device manager click on Update Driver, then twice on the lower option and then on Disk and then specify the exact directory.
• Ignore the warning and install the driver.

Now everything is working again: the HP audio controls are working properly, look different now and are available in the tray bar. Thanks for the hint, maybe it will help.

Controlador del catálogo de actualizaciones

(Solución para modelos: Prodesk 600 G4, Elitedesk 800 G4 y otros)

Actualmente, HP solo ofrece el controlador 8.65.319.200 Rev. A en su página de producto como "actual".

Los controles de audio de HP ya no funcionaban correctamente desde Windows 11 23H2 (el servicio se iniciaba con un retraso de varios minutos o no se iniciaba).

Encontré varias versiones del controlador de audio en el Catálogo de actualizaciones de Microsoft Update: https://www.catalog.update.microsoft.com/Search.aspx?q=8.65.321.20&p=0 .

Optó por el último controlador de audio Synaptics – MEDIA – 8.65.321.20 con un tamaño de 116,7 MB.

Así se instala:

~ Descargue el archivo cab del Catálogo de actualizaciones y descomprímalo en una carpeta usando 7Zip/WinRAR.

~ Luego en el Administrador de dispositivos > Controladores de sonido y vídeo y dispositivos de juego > Synaptics HD Audio > Actualizar controlador > Examinar mi PC en busca de controladores > Buscar controladores en esta ubicación y luego especifique la carpeta exacta usando la opcion " Examinar...".

~ Ignore la advertencia e instale el controlador.

Ahora todo vuelve a funcionar: los controles de audio de HP funcionan correctamente, ahora tienen un aspecto diferente y están disponibles en la barra de tareas. Gracias por ver, quizás te sirva.

[Garagarape]

Thanks a lot for this advice. It worked perfectly for me (except I had only one driver to erase). You made my day !

[cracker25]

Problema:

Después de actualizar a Windows 11, varios HP EliteDesk 800 G4 TWR se quedan sin audio. No funciona ni la salida interna ni la de jack de 3,5 mm. En el Administrador de dispositivos no hay errores visibles.

Causa:

El controlador de audio Synaptics (anteriormente Realtek) es sustituido por el controlador genérico de Microsoft (2022), que desactiva el chip de sonido interno. El sistema impide revertir el cambio porque no reconoce ninguna versión OEM válida hasta que se instala manualmente el paquete de HP.

Solución confirmada

Desinstalar el controlador de audio actual (Microsoft 2022) desde el Administrador de dispositivos.

Reiniciar el sistema.

Instalar el paquete oficial HP Synaptics Audio sp155208.exe( https://support.hp.com/ar-es/drivers/hp-elitedesk-800-g4-tower-pc/21353703 )

Volver al Administrador de dispositivos → Propiedades de Synaptics Audio → Pestaña Controlador y hacer clic en «Revertir al controlador anterior».

Aunque la opción dice «anterior», el controlador que se activa es la versión Synaptics 2025 firmada por HP, que restaura el audio.

Comprobar que el audio funciona en todas las salidas (interna, jack, HDMI).

Opcional

Para evitar que Windows Update vuelva a instalar el controlador genérico:

Añadir ExcludeWUDriversInQualityUpdate=1 al registro.

O bloquear el ID del dispositivo a través de la Política de Grupo.

Problem

After upgrading to Windows 11, several HP EliteDesk 800 G4 TWRs lose audio. Neither the internal output nor the 3.5 mm jack works. There are no visible errors in Device Manager.

Cause

The Synaptics audio driver (formerly Realtek) is replaced by the generic Microsoft driver (2022), which disables the internal sound chip. The system prevents the change from being reversed because it does not recognise any valid OEM version until the HP package is manually installed.

Confirmed solution

Uninstall the current audio driver (Microsoft 2022) from Device Manager.

Restart the system.

Install the official HP Synaptics Audio sp155208.exe package( https://support.hp.com/ar-es/drivers/hp-elitedesk-800-g4-tower-pc/21353703 )

Return to Device Manager → Synaptics Audio Properties → Driver tab and click ‘Roll back to previous driver’.

Although the option says ‘previous’, the driver that is activated is the Synaptics 2025 version signed by HP, which restores the audio.

Check that the audio works on all outputs (internal, jack, HDMI).

Optional

To prevent Windows Update from reinstalling the generic driver:

Add ExcludeWUDriversInQualityUpdate=1 to the registry.

Or block the device ID through Group Policy.