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Microsoft Windows 11 KB5079473 Microsoft account sign-in disruption

Service Disruption
First reported
Last updated
Happening score
H score 0
1 unique sources, 2 articles

Summary

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Microsoft's Windows 11 KB5079473 update is disrupting Microsoft account sign-ins across multiple apps, creating false no-internet errors and blocking normal access for affected users. The issue matters because it hits core productivity tools including Teams, OneDrive, Edge, Excel, Word, and Microsoft 365 Copilot. Microsoft says Entra ID authentication is not affected, and a temporary restart while online may clear the broken connectivity state.

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Microsoft Office launch disruption after June 2026 Windows updates

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H score0 First: 17.06.2026 14:54 Last: 17.06.2026 14:54 Sources 1

About this happening: Microsoft is investigating a **Windows update-related disruption** that can stop **third-party applications** from launching **Word, Excel, PowerPoint, Access** or opening documen...

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Microsoft Teams and Office for the web file-opening outage

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H score25 First: 01.06.2026 17:36 Last: 01.06.2026 17:36 Sources 1

About this happening: Microsoft is investigating an ongoing **service disruption** that is blocking **Teams** and **Office for the web** users from opening files, disrupting access to shared documents...

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Microsoft My Sign-Ins MFA outage

Service Disruption
H score25 First: 01.06.2026 14:40 Last: 01.06.2026 14:40 Sources 1

About this happening: **Microsoft** is dealing with an **ongoing outage** that is blocking some users from setting up **multi-factor authentication (MFA)** and accessing **My Sign-Ins**. Affected users...

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Microsoft Teams on macOS repeated location-prompt service disruption

Service Disruption
H score0 First: 19.05.2026 19:10 Last: 19.05.2026 19:10 Sources 1

About this happening: Microsoft confirmed a **Microsoft Teams on macOS** service disruption that causes **non-dismissible location prompts** for some users, interrupting normal app use for those who en...

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Microsoft Windows 11 KB5089549 cumulative update

Security Patch Release
H score19 First: 18.05.2026 11:33 Last: 18.05.2026 11:33 Sources 1

About this happening: Microsoft's **KB5089549** **Windows 11** security update is failing to install on some systems, forcing affected devices to roll back during reboot. The problem is tied to a nearl...

Open Happening

Timeline

  1. 23.03.2026 10:04 1 articles · 3mo ago

    Microsoft releases KB5085516 emergency fix for Microsoft account sign-in bug

    Mitigation Patch Update

    Microsoft started rolling out the KB5085516 optional out-of-band update to fix the Microsoft account sign-in bug that appears after KB5079473 on Windows 11 25H2 and 24H2. The update addresses the false no-internet sign-in failure affecting Microsoft Teams, OneDrive, Microsoft Edge, Microsoft 365 Copilot, Excel, and Word, and it is available through Windows Update or the Microsoft Update Catalog.

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  2. 20.03.2026 09:33 1 articles · 3mo ago

    Microsoft confirms Windows 11 KB5079473 sign-in disruption

    Initial Disclosure

    Microsoft says the March Windows 11 update KB5079473 breaks Microsoft account sign-ins across Teams, OneDrive, Microsoft Edge, Excel, Word, and Microsoft 365 Copilot, and can display a false no-internet warning even when the device is online. The issue affects Microsoft account authentication, does not affect Entra ID-based app authentication, and may be temporarily cleared by restarting the device while it remains connected to the Internet.

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