Title: Users may be unable to install Microsoft 365 desktop apps on Windows devices User impact: Users may be unable to install Microsoft 365 desktop apps on Windows devices. Current status: We've determined that a newly released set of authentication components contain a misconfiguration that prevents users from installing Microsoft 365 desktop apps on Windows devices. We're reconfiguring and will subsequently redeploy these components to remediate impact. Scope of impact: Any user attempting to install Microsoft 365 desktop apps on Windows devices may be impacted. Start time: Tuesday, November 11, 2025, at 6:00 PM UTC Root cause: A newly released set of authentication components contain a misconfiguration that prevents users from installing Microsoft 365 desktop apps on Windows devices. Next update by: Friday, November 14, 2025, at 10:00 PM UTC
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Monitoring - We have started seeing recovery for the potential issue with AccSec - US API errors. We will continue to monitor to ensure a full recovery. We expect to provide another update in 2 hours or as soon as more information becomes available. Nov 17, 2025 - 15:54 PST
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Users may be unable to install Microsoft 365 desktop apps on Windows devices
Microsoft 365 apps
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