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Microsoft Windows 11 KB5079391 rollout disruption

Service Disruption
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Last updated
Happening score
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1 unique sources, 1 articles

Summary

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The Microsoft rollout of KB5079391 for Windows 11 24H2 and 25H2 was halted after installation failures left some devices unable to install the update cleanly. Users reported 0x80073712 errors and missing update files, indicating a broad delivery problem rather than a one-off install glitch. Microsoft later confirmed the issue, stopped the rollout, and replaced the preview update with emergency patch KB5086672. The fix matters because it restores update delivery and preserves the March 2026 protections and improvements.

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Microsoft Windows Update installation failures on upgraded Windows 11 PCs

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H score1 First: 10.06.2026 14:33 Last: 10.06.2026 14:33 Sources 1

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Open Happening

Timeline

  1. 01.04.2026 08:33 2 articles · 3mo ago

    KB5086672 supersedes broken Windows 11 preview update KB5079391

    Mitigation Patch Update

    Microsoft released KB5086672 for Windows 11 versions 25H2 and 24H2 on March 31, 2026 as an out-of-band cumulative update, superseding KB5079391 and preserving the March 2026 protections and improvements while fixing the installation problem that produced 0x80073712 errors on affected devices.

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