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It's time for our second Ask Microsoft Anything (AMA) about updating Secure Boot certificates on your Windows devices before they expire in June of 2026. If you've already bookmarked Secure Boot play...
Heather_Poulsen
Updated Jan 29, 2026
Chas_Last_27
Feb 05, 2026Occasional Reader
Can Microsoft provide clarity on when the 2011 Secure Boot certificates will actually be revoked in the UEFI dbx? Am I correct that revocation—not expiration—is what will prevent systems from booting if they don’t already have the updated 2023 certificates applied?