Microsoft released an out-of-band update this week for Windows 11 versions 26H2, 25H2, and 24H2 to fix an audio bug that broke sound on older USB devices using the legacy Audio Class 1.0 driver. The flaw, introduced by the September 8 security update, left affected headsets and speakers silent, with unresponsive volume controls or a Device Manager error. The new patch also resolves several other recent issues alongside a couple of security flaws.
zdnet.com
· 2026-09-16
A developer reprogrammed the firmware of IK Multimedia's iRig HD X USB audio interface to run NAM A2-Lite, a compact neural amp-modeling engine, directly on the device's built-in 500 MHz NXP Cortex-M7 processor. Instead of streaming guitar audio to a computer or phone for amp simulation, the interface now processes a 5150-with-OD808 amp model in real time internally, fitting the engine into 128 KiB of FlexRAM and measuring performance close to the original NAMCore software.
playtaurus.com
· 2026-09-16
Microsoft confirmed that its September 8 security update, KB5124008, is causing audio failures on legacy USB Audio Class 1.0 hardware such as older speakers, headsets, and microphones. Affected users may see no sound, unresponsive volume controls, or a 'Code 10' error in Device Manager. The company noted a temporary workaround: switching the audio mode to Stereo restores sound until an official fix arrives.
zdnet.com
· 2026-09-14
Microsoft has pushed emergency out-of-band updates for Windows 10, Windows 11, and Windows Server to resolve Remote Desktop Services instability caused by its September 2026 security patches. The bug had triggered RDP sign-in failures, unresponsive servers, and related issues in MMC, File Explorer, and the Windows Update page. Separate fixes for the update also address Hyper-V and USB audio problems reported on some Windows versions.
bleepingcomputer.com
· 2026-09-14
Microsoft has acknowledged that its September security patches are causing Remote Desktop Services to fail across several Windows versions, silencing certain USB Audio Class 1.0 devices, and disrupting the paste function in Excel. Affected users report frozen management tools, unresponsive Windows Update pages, and audio glitches that can sometimes be worked around by switching to two-channel sound.
theregister.com
· 2026-09-14
Microsoft has acknowledged that the KB5124008 and KB5124012 security updates released on September 8, 2026 can cause USB Audio Class 1.0 devices to stop working on Windows 11 24H2 and later systems. Affected users report Code 10 errors in Device Manager, silent audio output, and frozen volume controls, with some speakers only failing when multichannel modes like 3D or 8-channel audio are used. No official fix exists yet, though switching to 2-channel mode has helped some users regain sound.
bleepingcomputer.com
· 2026-09-14
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