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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
AMA
Technical Takeoff
Arden_White's avatar
Arden_White
Icon for Microsoft rankMicrosoft
May 20, 2026

jad​ I have not seen this before. Two questions:

  • Did you initiate the updates or was this done automatically as a high confidence update?
  • Which version of Windows is this?

I'll check with our team to see if they know why.

jad's avatar
jad
Copper Contributor
May 20, 2026

Many thanks for the reply, Arden_White​  To answer your questions:

  • No, I did not initiate the cert updates -- the update was applied on reboot after applying May updates so I anticipate LCU was the update mechanism.
  • Yes, ConfidenceLevel=High Confidence in registry. Was "Under Observation..." prior to applying the May LCU.
  • OS is Windows 11 24H2.