aiAI Status Monitor

Degraded functionality for Claude Cowork on Windows

Partial outageResolved · started Sep 10, 2026, 3:54 PM UTC (24d ago)

This incident affects Claude. Source: official vendor status feed.

Timeline

  1. Sep 14, 2026, 7:14 PM UTC

    This issue has been resolved. Microsoft has released a September 14 Windows update that fixes it: https://support.microsoft.com/en-us/servicing/os/windows-11/2026/09/kb5129195-windows-11-24h2-25h2-security-update

  2. Sep 10, 2026, 3:54 PM UTC

    A Windows update released September 8 has left Claude Cowork on Windows unable to run local commands, because its workspace can no longer reach your computer's drive. For most users, chat and file reading and editing still work. There's no in-app workaround yet, and restarting or reinstalling won't help. Microsoft has developed a fix and is working to release it. We'll post an update when we have more to share.