Microsoft Confirms September 2026 Security Updates Can Break Some Windows 11 USB Audio Devices
Summary
Microsoft says its September 2026 security updates can disrupt USB Audio Class 1.0 devices on Windows 11 24H2 and later. A fix is in progress; switching to 2-channel audio may help some users.
Key points
- Updates KB5124008 and KB5124012 can affect USB Audio Class 1.0 devices on Windows 11 version 24H2 and later.
- Symptoms include Device Manager Code 10 errors, no audio, and unresponsive volume controls or sound settings.
- Some speakers fail specifically in multichannel modes, including 3D audio and 8-channel playback.
- Switching to 2-channel mode has restored audio for some users.
- Microsoft has not provided an official workaround and is working on a fix.
Article Details
- Event Type
- Compatibility issue caused by Windows security updates
- Impact
- Microsoft confirmed that the September 2026 updates KB5124008 and KB5124012 can cause USB Audio Class 1.0 devices on Windows 11 version 24H2 and later to fail, producing Code 10 errors, no audio output, or problems with multichannel playback. Switching to 2-channel mode has restored audio for some users.
Vendors
Products
KB5124008Microsoft confirmed that the KB5124008 and KB5124012 September 2026 security updates can cause USB Audio Class 1.0 devices to fail on Windows 11 version 24H2 and later systems.KB5124012Microsoft confirmed that the KB5124008 and KB5124012 September 2026 security updates can cause USB Audio Class 1.0 devices to fail on Windows 11 version 24H2 and later systems.USB Audio Class 1.0Microsoft confirmed that the KB5124008 and KB5124012 September 2026 security updates can cause USB Audio Class 1.0 devices to fail on Windows 11 version 24H2 and later systems.Windows 11Microsoft confirmed that the KB5124008 and KB5124012 September 2026 security updates can cause USB Audio Class 1.0 devices to fail on Windows 11 version 24H2 and later systems.