Windows 11 update silences some older USB audio devices; Microsoft offers stereo workaround

ZDNet reported that Microsoft disclosed the problem in an update to its “Windows 11, version 25H2 known issues and notifications” page. The flaw affects USB Audio Class 1.0 devices, which use the legacy Usbaudio.sys driver introduced with Windows 98. That driver connected devices through Microsoft’s plug-and-play method instead of requiring manufacturer-specific drivers. Modern USB speakers, headsets, and microphones typically use USB Audio Class 2.0, or connect through an audio jack or Bluetooth, ZDNet reported.

Microsoft said no permanent fix is available yet and that it is working on one. The company said affected devices may fail in multichannel modes such as 8-channel or 3D audio, but may work in standard stereo mode. Some people affected by the glitch reported that switching the output to 2-channel stereo restored audio, according to ZDNet.

To try the temporary workaround, open Control Panel in icon view and click the Sound applet. On the Playback tab, select the affected USB audio device and click Configure. Under Audio channels, select stereo instead of a multichannel option. Click Next and go through the remaining screens. Back on the Playback screen, click Test to verify that sound can now be heard.

The issue arrived with Microsoft’s September Patch Tuesday rollout, which is meant to fix bugs and vulnerabilities but can also create new glitches. Older USB hardware has remained in use, and ZDNet noted that the bug will affect a number of Windows users. Microsoft has not said when a permanent fix will be released.