Event details

Ask Microsoft Anything (AMA) about updating Secure Boot certificates on your Windows devices before they expire in June of 2026. We recently published the first version of the Secure Boot playbook, o...
Heather_Poulsen
Updated Dec 09, 2025
AMA
Simone_Termine's avatar
Simone_Termine
Brass Contributor
Dec 10, 2025

For anyone who's asking: event 1799 (TPM-WMI) tells you "Boot Manager signed with Windows UEFI CA 2023 has been installed".