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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
mithunlal's avatar
mithunlal
Copper Contributor
Dec 09, 2025

Does this have any relation with Defender ASR rule 'Block rebooting machine in Safe Mode'? https://learn.microsoft.com/en-us/defender-endpoint/attack-surface-reduction-rules-reference#block-rebooting-machine-in-safe-mode

Pearl-Angeles's avatar
Pearl-Angeles
Icon for Community Manager rankCommunity Manager
Dec 10, 2025

This question was answered during the live AMA at 12:50.