Event details
Join us in May for our fourth Ask Microsoft Anything (AMA) about updating Secure Boot certificates on your Windows devices before they start expiring in June of 2026. If you've already bookmarked Sec...
Heather_Poulsen
Updated May 18, 2026
kamlie
May 18, 2026Copper Contributor
Are machines no longer supported by the OEMs going to get the new cert? After running the registry key to set to 0x5944 it goes to in progress but checking the event viewer states the following: The Secure Boot update KEK 2023 was blocked due to a known firmware issue on the device. Check with your device vendor for a firmware update that addresses the issue. This device signature information is included here.
will these devices get updated by microsoft eventually?
Claude_Boucher_OEM
May 18, 2026Brass Contributor
Hi Can you please tell me what is the model of computer ?
I may have a solution for you. :)