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It's time for our third 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 playb...
Pearl-Angeles
Updated Mar 11, 2026
AMA
mataylor's avatar
mataylor
Occasional Reader
Mar 12, 2026

What impact will the TLS lifetime decreasing to 47 days have on these secure boot certificates?  Will these certificates eventually need to be replaced every 47 days?
https://www.digicert.com/blog/tls-certificate-lifetimes-will-officially-reduce-to-47-days

Jason_Sandys's avatar
Jason_Sandys
Icon for Microsoft rankMicrosoft
Mar 12, 2026

Hi mataylor​,

These certificates are not TLS certificates and are not used for TLS and thus unrelated to this guidance from DigiCert.