Microsoft Windows 11 25H2 Update Version OS Builds 26200.8117 and 26100.8117

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Update Summary

KB5086672 updates Windows 11 25H2 and 24H2 to OS Builds 26200.8117 and 26100.8117. It includes prior quality improvements and fixes an installation error affecting KB5079391 (0x80073712). Reference IDs: KB5079473, KB5085516, KB5079387.

Update Details

Bug Fixes

  • Fixed an installation issue where some devices could not install the March 2026 preview update KB5079391 and returned error 0x80073712.
  • Includes cumulative quality improvements from KB5079473, KB5085516, and KB5079391.

Hints

  • Offered through Windows Update to devices that already installed KB5079473 or later, and also available from the Microsoft Update Catalog.
  • IT administrators using Microsoft Intune or Windows Autopatch should follow Microsoft guidance for expedited deployment.
  • Manual installation path: Settings > Windows Update > Download & install.
  • Includes a servicing stack update: KB5079387 (26100.8112).
Product Information

Vendor: Microsoft

Product: Windows 11

Version: OS Builds 26200.8117 and 26100.8117

Release date: Mar 31, 2026

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