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, outlining the tools and steps you can take today to proactively plan and prepare for this milestone. Join this AMA with your questions about update scenarios, inventorying your estate, and formulating the right deployment plan for your organization.
On the panel: Arden White; Scott Shell; Richard Powell, Kevin Sullivan
This event has concluded. Follow https://aka.ms/securebootplaybook for announcements about future Secure Boot AMAs.
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114 Comments
- HigherEdArchitectCopper Contributor
With the new Windows events being generated, for Windows Server SKUs (primarily VMs) without Secure Boot enabled, why are Microsoft-Windows-TPM-WMI events - specifically event 1801 - being generated? The device with secure boot disabled at the hyper visor layer doesn't update nor meet the requirements.
- PprasadjjoshiOccasional Reader
We successfully deployed the registry key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecureBoot\MicrosoftUpdateManagedOptIn (DWORD value 0x5944) via Proactive Remediation and tested applying it through Intune Settings Catalog with the following settings:
- Enable Secure Boot Certificate Updates: Enabled
- Configure High Confidence Opt Out: Disabled
- Configure Microsoft Update Managed Opt In: Enabled
However, the Settings Catalog configuration fails. We want to replace the script by using a device configuration profile. Is setting this registry key alone sufficient to enable Secure Boot updates, or should the additional settings above also be applied?
- TastyPastryCopper Contributor
Is there any sort of reporting that we could use to better monitor where the certificates have not yet been updated?
- AntonDobschenskyBrass Contributor
Does the certificate update come in a specific update classification?
- RickNordmeyerOccasional Reader
Will this update to Secure Boot cert trigger a BitLocker recovery event? Is it recommended to suspend BDE prior to updating the cert?
- RandomWorkstationAdminCopper Contributor
How can we tell which of our devices are in this "high confidence" bucket?
- RandomWorkstationAdminCopper Contributor
Looks like it can be found in the "System" event log, checking either Event ID 1801 or 1808. It would be nice if there was an easier way to see this information and report on it...
- jalcortaCopper Contributor
What about VMware VMs that are secure-boot enabled? When I talked to Broadcom they said there is nothing to do just update the hardware BIOS. (Dell PowerEdge) ... is this correct?
- Gary19Occasional Reader
What's the difference between using the 0x5944 registry value for AvailableUpdates and using the high confident opt in?
- Jim HambyCopper Contributor
My HP EliteBook 845 G8 shows that the Windows UEFI CA 2023 certificate has been updated "automagically," but not the other three.
Should I expect that situation to resolve itself, or is additional action required?
If the device were to remain in this state (only the Windows UEFI CA 2023 updated/activated) will Windows & Secure Boot still function and update properly? - ChrisSchoeningCopper Contributor
Will any type of reporting via CM or Intune be created for large enterprises to track progress and compliance?