Hi Brad Milne,
Thanks for reaching out to Microsoft Q&A Forum. I understand you’re seeing a “No audio device is installed” message on your ASUS Zenbook, and sound is not available when selecting the audio icon on the taskbar.
Please make sure you already tried the Q&A Assist steps. In addition, please try the following.
Before we proceed, I need to narrow this down slightly to better target the cause:
1, Which Windows version are you currently using, Windows 10 or Windows 11?
2, In Device Manager, do you see any Unknown device or Other devices section with a warning icon?
In the meantime, you can try these steps:
1, Check Windows Audio services
- Press Windows key + R, type
services.msc, and press Enter - Make sure Windows Audio and Windows Audio Endpoint Builder are both set to Running and Startup type is Automatic
2, Show hidden devices in Device Manager
- Open Device Manager
- Click View and select Show hidden devices
- Expand Sound, video and game controllers and also check System devices for any audio-related entries
3, Check BIOS audio settings
- Fully shut down the device
- Power it on and repeatedly press F2 to enter BIOS
- Look for Onboard Audio or Audio Controller and make sure it is Enabled
- Save changes and exit
4, Install optional Windows updates
- Open Settings
- Go to Windows Update
- Select Advanced options
- Open Optional updates and install any driver-related updates
5, Reset audio device configuration
- Open Settings
- Go to System then Sound
- Scroll down and select Volume mixer
- Use Reset under Reset sound devices and volumes for all apps
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.