Microsoft Rolls Out Fix for Windows 11 Update That Broke Claude Cowork, tell me about this news in (https://www.pcmag.com/news/microsoft-rolls-out-fix-for-windows-11-update-that-broke-claude-cowork)
15-09-2026
Here is a summary of the news reported by PCMag:What HappenedMicrosoft released a patch to address several software issues introduced by a recent Windows 11 update (KB5124008). That initial updateintended to resolve nearly 1,000 bugs and vulnerabilitiesaccidentally triggered glitches affecting virtual machines, developer tools, remote desktop services, and older audio peripherals.Key Issues Caused by the Update
- Claude Cowork and WSL Breakage: The update broke a virtual machine mechanism (Plan9 drive sharing) used by Windows to share host folders with guest environments. As a result, Anthropic’s Claude Cowork became unable to run local commands because its workspace could no longer access the host machine’s drive, and the Windows Subsystem for Linux (WSL) encountered mounting errors.
- Remote Desktop Services (RDS) Instability: Enterprise environments experienced unstable RDP sessions, connection drops after a few minutes, sign-in failures, or servers freezing at the configuration stage.
- Audio Malfunctions: Older USB Audio 1.0 peripherals stopped emitting sound entirely or threw a “This device cannot start (Code 10)” error.
- What is fixed: The patch fully resolves the virtual machine/Plan9 drive-sharing bug (restoring functionality to Claude Cowork and WSL) as well as the Remote Desktop Services instabilities.
- What remains pending: It only partially addresses the audio issuesspecifically restoring multichannel/3D audio modeswhile Microsoft continues working on a separate fix for older USB Audio 1.0 devices that still fail to produce sound.