Windows 11 USB audio bug: Microsoft’s September security update KB5124008 can stop some USB Audio Class 1.0 devices from starting or producing sound. Affected users may see a Code 10 error, unresponsive volume controls or no audio output after installing the update released on 8 September.
What the Windows 11 USB audio bug affects
Microsoft’s known-issues page says the problem is limited to USB Audio Class 1.0 devices. It affects Windows 11 versions 24H2, 25H2 and 26H1, with no Windows Server platforms listed as affected.
The symptoms include “This device cannot start (Code 10)” in Device Manager, missing sound output, volume controls that stay at zero, and sound settings that stop responding. The issue can also appear when a device is used in multichannel audio modes.
How to restore USB audio after KB5124008
Microsoft says it is working on a resolution but has not provided a final fix. Some affected devices may work temporarily when switched to standard two-channel stereo rather than multichannel or 3D audio. That is a workaround, not a guarantee that the update has been repaired.
The report was first highlighted by TechPowerUp, which notes that USB headsets, DACs and other audio hardware can be affected. Windows Latest also reports the issue and identifies KB5124008 as the September update for Windows 11 24H2 and 25H2.
UAE users with USB audio hardware should check whether KB5124008 is installed before changing drivers or replacing equipment. Microsoft’s support page remains the source to watch for the promised resolution. tbreak has also tracked another recent Windows 11 update causing problems for games.
Which Windows versions are affected by the USB audio bug?
Microsoft lists Windows 11 versions 24H2, 25H2 and 26H1 as affected. Windows Server is not listed.
What can I try if my USB audio stops working?
Switch the device to standard two-channel stereo if that option is available. Microsoft says it is working on a permanent resolution.
