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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
Gary19's avatar
Gary19
Occasional Reader
Dec 10, 2025

What's the difference between using the 0x5944 registry value for AvailableUpdates and using the high confident opt in?