Microsoft Windows 11 25H2 Update Version OS Builds 26200.8039 and 26100.8039

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Update Summary

KB5085516 updates Windows 11 25H2 and 24H2 to OS Builds 26200.8039 and 26100.8039. It fixes a Microsoft account sign-in issue after the March 10, 2026 update and includes servicing stack update KB5083532. Reference IDs: KB5079473, KB5085518.

Update Details

Bug Fixes

  • Fixed an issue where some users saw a "no Internet" error when signing in to apps with a Microsoft account, even with working Internet access.
  • Resolved sign-in failures affecting Microsoft services and apps such as Microsoft Teams Free and OneDrive after the March 10, 2026 update.

Hints

  • This is an out-of-band cumulative update for Windows 11 version 25H2 and 24H2.
  • It is offered through Windows Update to devices that already installed KB5079473 and is also available from the Microsoft Update Catalog.
  • Devices with Hotpatch receive the fix via KB5085518 without requiring a restart.
  • IT administrators using Microsoft Intune or Windows Autopatch should follow the provided expedited update guidance.
  • Includes a servicing stack update: KB5083532 (26100.8035).
Product Information

Vendor: Microsoft

Product: Windows 11

Version: OS Builds 26200.8039 and 26100.8039

Release date: Mar 21, 2026

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