Microsoft releases Windows 10 KB5073724 extended security update

Published on January 13, 2026

Microsoft has released the KB5073724 extended security update to fix the Patch Tuesday security updates, including 3 zero-days and a fix for expiring Secure Boot certificates. [...]

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Windows 11 KB5074109 & KB5073455 cumulative updates released

January 13, 2026
Microsoft has released Windows 11 KB5074109 and KB5073455  cumulative updates for versions 25H2/24H2 and 23H2 to fix security vulnerabilities, bugs, and add new features. [...]

New Windows updates replace expiring Secure Boot certificates

January 13, 2026
Microsoft has started rolling out new Secure Boot certificates that will automatically install on eligible Windows 11 24H2 and 25H2 systems. [...]