Intel High Definition DSP - No Audio Device installed after updating to latest Windows 11

Im having the same issue with a razor rz09, nothing listed under sound, video, and game controllers

I recently upgraded my laptop from Windows 10 to windows 11 but now its saying 'No output devices found'. Kindly help as I can't use microphone.

HP Envy x360 Convertible PC 15t - ed00

no matter the number of audio drive i download my sound is crossed red

and also the playback is empty and at the sound setting input an output devices are empty

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This worked for me with a slight variation - I installed "Intel Smart Sound Technology OED", which didn't report that it couldn't start, then everything started working, audio included.

The only solution that worked for me was:

6. In the folder where the driver was extracted, select the "IntelHDASST" folder.

7. After this the audio started working although the device "Intel Smart Sound Technology" was added with a warning that it cannot start the device.

Thank you Facundo.

I found same problem with my Thinkpad P15 Gen 1 after update windows 11.

I followed your steps and it works for me.

The only solution that worked for me was:

1. Download the driver from the following url and extract it to disk:

Realtek Audio Driver for Windows 11 (Version 21H2 or later), 10 (Version 1809 or Later) - ThinkPad P15 Gen 1, P15v Gen 1, P17 Gen 1, T15g Gen 1, T15p Gen 1 - Lenovo Support US

2. From the administrator start the driver update on the "Intel High Definition DSP" device.

3. Select "Search my computer for drivers".

4. Select "Choose from a list..."

5. Select "Game Controllers, Audio..."

6. In the folder where the driver was extracted, select the "IntelHDASST" folder.

7. After this the audio started working although the device "Intel Smart Sound Technology" was added with a warning that it cannot start the device.

8. Probably not optimal but it worked.

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La única solución que funcionó para mi fue:

1. Descargar el driver desde la url siguiente y extrarlo en el disco:

Realtek Audio Driver for Windows 11 (Version 21H2 or later), 10 (Version 1809 or Later) - ThinkPad P15 Gen 1, P15v Gen 1, P17 Gen 1, T15g Gen 1, T15p Gen 1 - Lenovo Support US

2. Desde el administrador iniciar la actualización del controlador en el dispositivo "Intel High Definition DSP".

3. Seleccionar "Buscar controladores en mi equipo".

4. Seleccionar "Elegir en una lista..."

5. Seleccionar "Dispositivos de juegos, audio..."

6. En la carpeta donde se extrajo el driver, seleccionar la carpeta "IntelHDASST".

7. Luego de esto comenzó a funcionar el audio aunque se agregó el dispositivo "Tecnología Intel Smart Sound" con un advertencia que no puede iniciar el dispositivo.

8. Seguramente no es lo óptimo pero funcionó.

I am answering this in case somebody like me has the same issue. The laptop I was experiencing the issue on was the Lenovo P15v. Lenovo actually has a guide to fix this easy, which does not require downloading any additional drivers or anything like that. Here is the link:

Thank you so much! This really helped me!