December 9, 2025—KB5071507 (Security-only update)

December 9, 2025—KB5071507 Security-only update Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. This might affect the ability of certain personal and business devices to boot securely if not updat...

KB5074204: Security Update for Windows PowerShell (OS Builds 26100.7392 and 26200.7392)

KB5074204: Security Update for Windows PowerShell OS Builds 26100.7392 and 26200.7392 For information about Windows update terminology, see types of Windows updates and the monthly quality update types. To find an overview of Windows 11, see the update history pages for Windows 11, version 24H2 a...