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Windows 11 January Update KB5074109 Fails with Error 0x80073712
he 2026-01 security update (KB5074109) keeps failing with error code 0x80073712, showing "some update files are missing or have issues." Need a fix.
Hello,
Try installing the KB5074109 update manually, see if it helps:
https://www.kapilarya.com/how-to-install-updates-manually-in-windows-11
Let us know if this helps!
Note: Included link in this reply refers to blog post by a trusted Microsoft MVP.