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Microsoft Windows 365 update blocks Cloud PC access

Service Disruption
First reported
Last updated
Happening score
H score 13
1 unique sources, 2 articles

Summary

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Microsoft confirmed a Windows 365 update is blocking access to Microsoft 365 Cloud PC sessions, causing sign-in failures and intermittent service degradation for enterprise users. The issue began Tuesday at 19:00 UTC and remains ongoing while engineers investigate the cause. Microsoft has issued temporary workarounds through the Windows App Web Client and the Remote Desktop client for Windows.

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Timeline

  1. 18.01.2026 20:16 1 articles · 4mo ago

    Microsoft releases OOB updates for Windows Cloud PC and Secure Launch bugs

    Mitigation Patch Update

    Microsoft released out-of-band updates for Windows 10, Windows 11, and Windows Server to fix credential prompt and sign-in failures affecting Microsoft 365 Cloud PC sessions, Windows App connections on Windows client devices, Azure Virtual Desktop, and Windows 365, and to resolve a Secure Launch shutdown and hibernation issue on Windows 11 version 23H2. The fixes include KB5077793, KB5077800, KB5077795, KB5077744, KB5077797, and KB5077796, and Microsoft said managed devices can alternatively use Known Issue Rollback through Group Policy.

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  2. 14.01.2026 11:55 2 articles · 4mo ago

    Initial report: Microsoft Windows 365 update blocks Cloud PC access

    Initial Disclosure

    The first signs of trouble appeared **Tuesday at 19:00 UTC**, when customers began seeing **failed connection attempts** and intermittent access problems to Cloud PCs. Microsoft’s monitoring then detected the rising connection failures and opened an investigation into the **Windows 365** update.

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