I have no audio device after installing latest Win 11 update.

Hi, I'm Bernard. I'm happy to help!

To confirm, are you using a laptop or a desktop? Do you see an X mark on the audio icon on your taskbar? While waiting, I recommend running the audio troubleshooter, and if the issue persists, the next option is to roll back the audio driver. Kindly follow the steps below:

Method 1. Run the Audio troubleshooter:

Press the Windows Key + R, then type in:

msdt.exe /id AudioPlaybackDiagnostic

Then hit OK and follow the prompt to run the Audio troubleshooter.

Method 2. Roll back the audio driver:

-Press the Windows key + X

-Go to Device Manager

-Expand Sound, video and game controllers

-Look for Realtek (R) Audio or High Definition Audio

-Right-click and click Update Driver

-Select Browse my computer for drivers

-Click Let me pick from a list of available drivers on my computer

-Choose an old driver or another driver name, then select it and click Next until it installs.

-Restart the PC and check.

Note: If the issue persists, please download and install the audio driver from your manufacturer’s website.

Please try this:

Open Device Manager, and make sure you've audio drivers installed and properly working.

If no audio driver is listed, you can visit your device manufacturer's website to download and install audio drivers for your system model.

If audio driver is present, you can try updating audio drivers to latest version.

Or if you've already updated them, try to roll back previous version to see if that works.

Also, run Playing Audio troubleshooter from Settings app > System > Troubleshoot > Other troubleshooters. Let us know what it reports back.