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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
willrun4fun
Mar 10, 2026Copper Contributor
I've done all of the same procedures on my Hyper-V guest Windows 2022 servers I did to my workstations but the certificates are not updating fully. I get a 1799 but no 1808.
Are we still awaiting patches for this from Microsoft?
EDIT: March cumulative on the host and working on guests now. All of them are getting certs now.
Cliff_Hughes
Mar 10, 2026Copper Contributor
I can confirm the March 2026 cumulative updates installed on the Hyper V Host, and on the guest VMs (in my case it was Server 2019 that was not getting the updated Secure Boot Certificates. Once the march patches were installed and I restarted the servers it took a short time, but they both now show the Updated status as desired.