It says no audio device is installed when I plug in my c920 logitech camera

Same problem with my l logitech 920-cam.

Suggested fixes didn’t help, only to restart without cam connected and not re-connect it, once I connect it, audio/sound is lost.

go under device manager, scroll down to "Sound, video and game controllers" disable device "1080P Pro Stream" under THIS category but leave it enabled elsewhere. Instantly all my other audio inputs kicked back on

This works but the mic of the webcam doesnt work because its been disabled.

Is microsoft even looking into this ?

go under device manager, scroll down to "Sound, video and game controllers" disable device "1080P Pro Stream" under THIS category but leave it enabled elsewhere. Instantly all my other audio inputs kicked back on

Works for me, but as previous stated web-cam mic is deactivated so you need to keep your laptop close. Thanks.

I tried both uninstalling and disabling the device under "Sound, video and game controllers" and still seeing Windows Audio service stopping when connecting my Logitech webcam (mine is C910). Also tried that on the other devices associated with the webcam (e.g. mic under "Audio inputs and outputs" and camera under "Camers") but still seeing Windows Audio stopping.

I did however find a solution that isn't ideal but workable: install Logitech Capture.

https://www.logitech.com/en-us/software/capture.html

The not so ideal part:

• Logitech Capture has not been updated for Windows 11, which means it's not compatible with Core Isolation. So, during the install, you will see an error and be prompted to disable Core Isolation. The good news is that after rebooting, everything works, i.e. Windows Audio no longer crashes and mic+camera work.
• So, if you want to keep the protection offered by this new Windows 11 feature, then don't install Logitech Capture. Read more about Core Isolation here.
• If you install Capture but now want to uninstall it to reenable Core Isolation, then you may find that the driver files are left around after the uninstall, preventing you from reenabling Core Isolation. Windows will show you the names of the driver files, so you just need to search for them in c:\Windows\system32 and manually delete them.