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Microsoft Windows Server 2016 KB5094122 installation failures resolved

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

Summary

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Microsoft resolved a Windows Server 2016 update-installation failure that blocked June 2026 security updates on some unpatched servers. Affected devices could hit 0x80070002 / FILE_NOT_FOUND and fail to install KB5094122 unless KB5087537 had already been applied. The fix restores normal patch deployment and reduces the chance that servers remain behind on security updates.

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Timeline

  1. 18.06.2026 13:14 2 articles · 2h ago

    Microsoft resolves Windows Server 2016 KB5094122 installation failures

    Mitigation Patch Update

    Microsoft says the June 2026 KB5094122 security update for Windows Server 2016 now installs normally after a known issue caused 0x80070002 (ERROR_FILE_NOT_FOUND) or FILE_NOT_FOUND errors on devices that had not first installed KB5087537. The service alert and vendor notice confirm that affected administrators had reported failed update installations and that the installation problem has now been resolved.

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