December 9, 2025—KB5071544 (OS Build 17763.8146)

December 9, 2025—KB5071544 OS Build 17763.8146 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 update...

December 9, 2025—KB5071506 (Security-only update)

December 9, 2025—KB5071506 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...