Microsoft Windows 11 USB audio disruption after September 2026 updates
Service Disruption
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Microsoft's KB5124008 and KB5124012 September 2026 security updates are breaking USB Audio Class 1.0 devices on Windows 11, version 24H2 or later, leaving some PCs with no audio output and Code 10 errors. The disruption also makes volume controls and sound settings unresponsive for affected users. Microsoft has confirmed the issue in a Friday release health update and said the failure can stop devices from starting or producing audio. Some users can temporarily recover sound by switching to 2-channel mode, but an official workaround has not yet been published.
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Timeline
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14.09.2026 11:08 1 articles · 3h ago
Microsoft Windows 11 USB audio disruption after September 2026 updates
Initial DisclosureMicrosoft identified a post-update audio failure affecting USB Audio Class 1.0 devices on Windows 11, version 24H2 or later. The issue emerged after the September 2026 security updates and is being tracked as a known problem.
Show sources
- Microsoft: September updates break audio on some Windows PCs — www.bleepingcomputer.com — 14.09.2026 11:08