Lance Whitney/ZDNETZDNET’s key takeaways
- Microsoft’s new replace patches a nasty audio drawback.
- The replace additionally fixes different latest glitches.
- Some bugs got here with the Sept. Patch Tuesday replace.
Microsoft has launched an out-of-band patch to squash an annoying audio bug in Windows 11.
Additionally: The latest Windows 11 update may mess with your device’s audio – here’s the workaround
The patch launched on Monday for Windows 11 26H2, 25H2, and 24H2, and resolves a glitch that prevented audio from playing on sure headsets, audio system, and different USB-connected gadgets. Particularly, the issue impacted USB Audio Class 1.0 gadgets, which use an older, legacy audio driver launched again in Windows 98.
Home windows 11 customers impacted by the bug might encounter any of the next points:
- No audio output.
- Sound settings are unresponsive or unavailable.
- Quantity controls are unresponsive or stay at zero.
- The machine shows an error in System Supervisor: “This machine can not begin (Code 10).”
Till the brand new patch, the one workaround was switching your audio machine from 8-channel or 3D audio to plain stereo mode.
The glitch didn’t simply spring up out of the blue. As a substitute, the problem got here with Microsoft’s Sept. 8 security update. Whereas these month-to-month updates are supposed to repair safety bugs and different points, they’ll create new issues.
Additionally: Latest Windows 11 update restores your taskbar control, patches 995 security flaws
The one saving grace this time was that solely older gadgets are affected. Right now’s audio gadgets sometimes hook up with a PC utilizing a extra trendy normal generally known as USB Audio Class 2.0, or through a daily audio jack or wirelessly by way of Bluetooth.
Nonetheless, the bug was extreme sufficient to immediate Microsoft to situation an out-of-band patch, which it does provided that it could’t look forward to the subsequent common spherical of Home windows updates. Past the audio situation, the patch additionally addresses a few safety flaws and different points.
Additionally: Microsoft’s latest Windows update breaks cursors, wallpaper, and more – what to do if you’re affected
One safety vulnerability labeled CVE-2026-62721 might permit a distant attacker to achieve system-level privileges on an unpatched pc. One other situation, generally known as CVE-2026-85921, might let somebody elevate their privileges domestically to entry information and private knowledge that might in any other case be safe and guarded.
A 3rd glitch issues Microsoft’s Distant Desktop Providers. One other bug added with the Sept. 8 Patch Tuesday rollout, this glitch might trigger RDS to develop into unstable, result in login failures, or back-end server unresponsiveness.
Additionally: Microsoft fixes 421 bugs and a Windows zero-day in August Patch Tuesday – update ASAP
The opposite bug impacts Microsoft’s Hyper-V digital machine platform. On this case, functions that use HCS-managed digital machines (VMs) bumped into points when sharing the host folder with Linux VMs utilizing the open-source Plan 9 operating system from Bell Labs.
To seize the replace, head to Settings and choose Home windows Replace. In Home windows 11 26H2, search for an replace labeled “2026-09 Safety Replace (KB5129195).” In Home windows 11 25H2 or 24H2, search for one named “2026-09 Safety Replace (KB5129194).”
For those who see the replace, click on the button to obtain and set up it. If not, click on the button to examine for updates, and the precise replace in your model of Home windows ought to seem.
