The Secure Boot update failed to update SBAT with error Unknown HResult Error code: 0x800700c1

[movoodoo]

System Model: HP ProBook 450 15.6 inch G10 Notebook PC

OS Name: Microsoft Windows 11 Pro
OS Version:  Build 26200.7623 25H2

Original Install Date: 23.06.2025, 0:02:14

BIOS Version: HP V72 Ver. 01.10.00, 26.08.2025

This is my second question, the same one. The previous one ended in nothing.

(Here: https://h30434.www3.hp.com/t5/Notebook-Operating-System-and-Recovery/The-Secure-Boot-update-failed-U... )

Now (after some lately updates) I have the following messages in Event Viewer (System):

Event ID: 1801

Updated Secure Boot certificates are available on this device but have not yet been applied to the firmware. Review the published guidance to complete the update and maintain full protection. This device signature information is included here.
DeviceAttributes: FirmwareManufacturer:HP;FirmwareVersion:V72 Ver. 01.10.00;OEMModelBaseBoard:8B7C;OEMManufacturerName:HP;OSArchitecture:amd64;
BucketId: 50552e049c55890668db83300ff2ef661933fed30e7d962e59b4c3356059a77b
BucketConfidenceLevel:
UpdateType:
For more information, please see https://go.microsoft.com/fwlink/?linkid=2301018.

Event ID: 1796

The Secure Boot update failed to update SBAT with error Unknown HResult Error code: 0x800700c1. For more information, please see https://go.microsoft.com/fwlink/?linkid=2169931

I get the result False after running the command:

[System.Text.Encoding]::ASCII.GetString((Get-SecureBootUEFI db).bytes) -match 'Windows UEFI CA 2023'

This command is from here:

https://support.microsoft.com/en-us/topic/how-to-manage-the-windows-boot-manager-revocations-for-sec...

Is there any one specific algorithm of actions to solve this problem?