Event details

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 play...
Pearl-Angeles
Updated Apr 15, 2026
AMA
gazlancaster68's avatar
gazlancaster68
Copper Contributor
Apr 23, 2026

We have an issue where vmware vm servers upgraded via ipu from 2012 to 2024 are failing with a tpm error when running the windows-secure-boot-update scheduled task so they don't get the event id 1808, newer 2022 servers don't have that issue and have the same configuration. None of the servers have tpm enabled in vcenter. Can you confirm that secureboot is enabled by running 

Confirm-SecureBootUEFI = True, even though the event id 1808 doesnt show.

 

  • mihi's avatar
    mihi
    Brass Contributor
    Apr 23, 2026

    Can you share the exact errors you are seeing?

    All Secure Boot related events are logged with an event source of TPM-WMI, regardless whether they have a TPM enabled or not.

    Can it be that the newer VMs have been created from a VM template that already included the certificates?