Windows 11 update KB5124008 silences USB audio devices
Microsoft has confirmed the bug but offered no fix, leaving owners of affected USB audio hardware without an official solution.
Microsoft’s September update for Windows 11 is cutting the sound from some USB audio hardware. The patch, known as KB5124008, was deployed on 8 September 2026 and causes complete failures on USB audio devices using the class 1.0 standard.
Microsoft confirmed the bug on 12 September. The company has not proposed a solution, leaving owners of affected equipment without an official fix.
The fault concerns a broad category of peripherals rather than one product. Class 1.0 covers many microphones, headsets, speakers and audio interfaces that connect over USB without a dedicated driver, which explains the scale of the problem reported.
The reports give no indication of when a correction will be published. Until then, the failure is described as total on the devices concerned.
Sources
Written by UnboxingTN's automated newsroom from these articles, which remain the reference.