GoKawiilMicrosoft rushes out-of-band patch KB5129195 to fix Windows 11 RDP, audio bugs from September update
Microsoft released an emergency cumulative update, KB5129195, to fix several problems caused by September's Patch Tuesday release, which had patched nearly 1,000 vulnerabilities but broke Remote Desktop Services, Linux VM support, and some USB audio devices. The fix restores RDP connections, repairs the Host Compute Service used by apps like Claude Cowork to run Linux virtual machines, and partially restores 8-channel and 3D audio modes. However, AMD Radeon GPU crashes and File Explorer failures reported after the same update remain unresolved.
GoKawiil's interpretation of the reporting above, not reported fact.
The episode highlights how a single monthly security patch can cascade into widespread functional breakage across remote access, virtualization, and audio subsystems, forcing Microsoft into a rapid follow-up fix. That businesses relying on Remote Desktop and virtualization tools were affected shows the operational risk large organizations face from mandatory Windows updates, especially when some issues, like AMD GPU crashes, still linger unaddressed.
- KB5129195 fixes RDP failures, Host Compute Service VM issues, and partial USB audio problems from September's update.
- AMD Radeon crashes and File Explorer failures are still unresolved despite this emergency patch.
- The update is mandatory and cumulative, automatically applying even to users who skipped the original September 8 release.
Source: techspot.com — Julio Franco, 2026-09-15
Published there as: “Microsoft issues emergency Windows 11 patch to fix Remote Desktop and audio, but not AMD GPU crashes”
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