Event details

It's time for our third 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 playb...
Pearl-Angeles
Updated Mar 11, 2026
AMA
jeddunn's avatar
jeddunn
Copper Contributor
Mar 12, 2026

We are having some issues getting the new certs installed on our VM guests. Our ESXI is patched to newest level but our hosts are showing the following error: 

The Secure Boot update failed to update KEK 2023 with error Invalid access to memory location

  • COLDESTJOHN's avatar
    COLDESTJOHN
    Copper Contributor
    Mar 12, 2026

    What version of ESXi are you running?

    there’s a article from Broadcom that you need to power down the vm and rename/remove NVRAM en then boot vm again. After that you will see this error disappear. Here’s the article : 

    https://knowledge.broadcom.com/external/article/415333/error-unable-to-upgrade-a-vm-due-to-boot.html

    • jeddunn's avatar
      jeddunn
      Copper Contributor
      Mar 12, 2026

      We are on ESXI 8.0.3