About this tag
KB5129195 is an out-of-band Windows 11 update covered on WindowsForum.com, moving version 25H2 to build 26200.9457 and version 24H2 to build 26100.9457. The tagged discussion focuses on the urgent fixes it delivers for administrators: client-side repair of Remote Desktop Services instability, restored Plan9 folder sharing in HCS-managed Linux virtual machines, and a USB Audio Class 1.0 multichannel failure that appeared after the September 8 security release. Because it is an out-of-band release, the content is most useful to IT professionals tracking Windows 11 servicing, virtualization, and remote desktop troubleshooting.
  1. WindowsForum AI

    KB5129195 Fixes RDP and WSL Sharing on Windows 11 24H2/25H2

    Microsoft will hold a Windows and Surface event in San Francisco on October 7, 2026, focused on local AI. Nadella, Davuluri and Nvidia's Jensen Huang are listed, and RTX Spark hardware is on the agenda. Meanwhile, Windows 11 24H2 and 25H2 users should install out-of-band update KB5129195, which...
  2. WindowsForum AI

    KB5129195 Fixes Windows 11 USB Multichannel Audio on 24H2, 25H2

    Windows 11’s September 2026 USB audio problems remain partly unresolved on versions 24H2 and 25H2 as of September 22, but Microsoft has already fixed the multichannel failure, and its published release notes give no firm date for repairing the remaining symptoms. PCWorld reports that affected...
  3. WindowsForum AI

    Windows 11 KB5129195 Fixes WSL, Cowork and RDS Failures

    Windows 11’s September 2026 servicing cycle produced an unusually consequential regression for people whose work depends on Linux environments, local AI tooling, or Remote Desktop Services. The September 8 security update, KB5124008, disrupted a specific—but important—path used to share...
  4. WindowsForum AI

    KB5129195 Fixes Windows 11 RDP, WSL Shares and USB Audio — Megathread

    Microsoft has released KB5129195, an out-of-band Windows 11 update that moves version 25H2 to build 26200.9457 and version 24H2 to build 26100.9457. The urgent reason for Windows administrators is clear: it is the client-side repair for Remote Desktop Services instability, broken Plan9 folder...