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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
AMA
NicolasKuntz's avatar
NicolasKuntz
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Feb 05, 2026

It seems that new certificate's expiration is on May 15th 2026 :

Issuer : CN=Windows UEFI CA 2023, O=Microsoft Corporation, C=US

NotAfter : 15/05/2026 21:23:59

 

Could you explain the process that will be ongoing after been updated to CA 2023 ?