The Key Exchange Key (KEK) acts as an authority that allows Microsoft to update the other databases, like the DB and DBX that tell your computer which bootloaders are safe.
In June 2025, Microsoft announced that, in June 2026, it would begin deprecating Secure Boot certificates of Windows systems ...
TL;DR: Secure Boot certificates in Windows 10 and 11 will expire by June 2026, risking system security and compatibility. Microsoft is issuing new certificates through updates and OEM firmware ...
Microsoft is taking its time with the boot certificate rollout, but you don't have to. Activate the latest UEFI CA 2023 right now.
In brief: Secure Boot was originally introduced with Windows 8 as a firmware-based security feature designed to protect the OS from potentially malicious boot code. After more than 15 years, the ...
The February Windows update preview is extensive. It includes new Secure Boot certificates and app and settings backups.
Microsoft will use standard Windows 11 updates to keep Secure Boot working on existing PCs as the operating system's original certificates near their end. The company says Secure Boot certificates ...
KB5077241 is now officially available, bringing Emoji 16.0, Sysmon integration, Secure Boot updates, and key Windows 11 ...
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