Event details
I have windows 11 build no 26200.8875 with b760m motherboard, In previous version bios relased on april 28th 2026 with updates certificates
confidentiallevel was High Confidence
After upgrading to latest bios released june 11th 2026,
confidentiallevel was setted to No Data Observed - Action Required
Why this changes happened in windows ?
Please explain
Thanking you
Varadharajan K
MicrosoftThe confidence data is based on device firmware version. When your device was high confidence rated, the fw version that was on the device is in the high confidence rating. However, when firmware is updated, the bucket ID drifts and it gets a new bucket ID. That bucket ID is still not yet marked as high confidence so the device now shows as No Data Observed - Action Required because the data for newest firmware version is not yet available in the confidence data.
If your device is already up-to-date with the certs, you can ignore this confidence rating. When a new firmware update is deployed, this data drift is expected.
You can execute the script
C:\Windows\SecureBoot\Scripts\Detect-SecureBootCertUpdateStatus.ps1 to get the latest status of secure boot certificate updates