ARCHIVED OFFICIAL INCIDENT

Degraded functionality for Claude Cowork on Windows

Claude · Last saved provider status: resolved

Current service report →
This is historical evidence.

The last saved event status is not the current service status. Source lists can be incomplete, and disappearance from a source does not confirm recovery. Open the current report or the official source for newer evidence.

Saved event details

Provider status
resolved
Provider impact
major
Provider record created
10 Sep 2026, 15:54:10 UTC
Provider record updated
14 Sep 2026, 19:14:45 UTC
Explicit provider start
10 Sep 2026, 15:54:10 UTC
Explicit provider end
14 Sep 2026, 19:14:45 UTC

Affected components reported by the provider

  • Claude Cowork bpp5gb3hpjcl

These associations describe this event’s reported scope. They do not establish current component availability or verified dependencies.

A record creation time is not necessarily an outage start. Unreported times remain unavailable. We do not calculate downtime from collection times.

Anthropic's complete Claude status report, including the app, API, Code and other listed components. An operational report does not verify any model or account.

Provider updates in saved revisions

Latest first. We show up to 100 distinct updates from the latest 20 saved content revisions. Revised wording at the same provider time is retained separately.

  1. resolved

    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

    Seen in a saved revision at 06 Oct 2026, 13:58:39 UTC
  2. identified

    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.

    Seen in a saved revision at 06 Oct 2026, 13:58:39 UTC