Windows 11's September update broke audio. That's not the only thing., tell me about this news in (https://www.msn.com/en-us/technology/hardware-and-devices/windows-11-s-september-update-broke-audio-that-s-not-the-only-thing/ar-AA2cd1sC?ocid=BingNewsVerp)

15-09-2026

Microsoft’s September 2026 Patch Tuesday security update (KB5124008 / KB5124012) for Windows 11 has caused a series of unexpected issues, with broken audio being the most prominent headline bug.The Audio ProblemMicrosoft officially acknowledged on its Windows Release Health dashboard that the update disrupts older USB audio hardwarespecifically devices relying on legacy USB Audio Class 1.0 drivers (such as older USB headsets, DACs, external speakers, and microphones).Key symptoms include:
  • Devices failing completely and throwing a “This device cannot start (Code 10)” error in Device Manager.
  • Total loss of sound output and unresponsive sound settings or volume sliders locked at zero.
  • Failure when handling multichannel, 3D, or surround sound configurations (such as 8-channel audio).
  • Temporary Workaround: Some users have restored sound by opening the classic Sound Control Panel, selecting the device, clicking “Configure,” and manually switching the output mode back to standard 2-channel stereo.
“That’s Not the Only Thing”The audio bug is not the only issue introduced or highlighted alongside the September update rollout. Several other problems have been confirmed or widely reported by users and system administrators:
  1. File History Breakage: Several users reported that the built-in Windows File History backup utility stopped functioning properly or failed to recognize external backup drives.
  2. Remote Desktop Services (RDS) Instability: Microsoft confirmed an issue causing crashes or connection instability for systems utilizing Remote Desktop.
  3. Hyper-V Shared Folders in Linux VMs: Users running Linux virtual machines on Hyper-V discovered that Plan 9 host folder sharing stopped mounting or displaying host files inside guest environments.
  4. GPU and Peripheral Glitches: Various reports surfaced concerning stuttering, display driver oddities, and lingering issues from recent update cycles that disrupted mouse pointer customization and custom cursor sizes.
Microsoft has formally logged these issues and is currently working on automated resolutions and upcoming cumulative hotfixes.


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