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It's time for our fourth 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 playbook, but need more details or have a specific question, join us to get the answers you need to prepare for this milestone. No question is too big or too small. Update scenarios, inventorying your estate, formulating the right deployment plan for your organization -- we're here to help!

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Pearl-Angeles
Published Mar 11, 2026
AMA

2 Comments

  • VinceNoir's avatar
    VinceNoir
    Occasional Reader
    Mar 13, 2026

    I have a large number of devices in storage, which are unlikely to be powered on before the end of June 2026. Once the devices are back on line after June 2026, will we still be able to update the certs after the appropriate bios and windows updates are installed?

  • dwqdda's avatar
    dwqdda
    Occasional Reader
    Mar 12, 2026

    We have several devices without 2023 cert in default db where we expect to reset secure boot and reinstall past June 2026. I understand it's possible to install 2023 cert post June 2026, but will Windows Update automatically install 2023 cert past June 2026 since you won't get security updates for boot manager and secure boot via Windows Update past that date?