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Resolved Anthropic (Claude) · degraded service

Degraded functionality for Claude Cowork on Windows

Posted 10 Sep 15:54 UTC, last seen today 13:18 UTC.

Anthropic (Claude) status pageOn the status board
Unknown Duration: the provider stated no start
2Updates posted
4Other incidents at the same time

What it affected

As the provider names it

Claude Cowork

What the provider posted

Newest first
  1. 14 Sep 19:14 UTCResolvedThis 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. 10 Sep 15:54 UTCIdentifiedA 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.

Around it

From the sources ChangeIntel reads; a match in time is not a cause

What changed

First observed 14 Oct 2026

No field changes in the recorded history.

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Sources read 14 Oct 12:55 UTC · 254 of 255 readable · 253 fully read · documentation 0/409 current

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