Capricornus

I would like to give an update on my battle with my HP Z440 workstation. Last week I left off with the UEFI PK having (none) when I ran...

On my HP Z440, i deleted the secure cert keys in the bios and ran the update script. That did not get me anywhere. I then reset the...

I will try that. Thanks.

I rebooted and ran .\Update_UEFI-CA2023.ps1 -Revoke ERROR: Failed to append "dbxupdate.bin" to UEFI DBX.

Running check-dbx.bat -verbose only gives: FAILED: Missing 11/289 EFI signatures from "dbxupdate.bin" SUCCESS: Matched 3/3 SVN...

I ran the update script with the revoke option on my HP Z440, but I get this error: ERROR: Failed to append "dbxupdate.bin" to UEFI DBX...

Having seen that there were updated scripts (2026-06-08), I ran them on my three computers. On my oldest computer (Lenovo all-in-one...

In Post #1736 I posted that I could not get my HP Z440 workstation to revoke, as I got an error. Today, having read this article Windows...

Hazel123: the secure boot is on in the bios. It just shows up in another part of the bios, and I did not take a picture of that...

Concerning my HP Z440 workstation: Looking at the document L49253-001 from HP, labelled HP Sure Start Technical white paper, it states...

Looking at this link https://support.hp.com/us-en/document/ish_9642671-9641393-16 my HP Z440 workstation is not on the list of HP...

Meanwhile I checked on my very old Lenovo C340 all-in-one with the UEFI from 2012, and there too the same command (version 2026-5-8 I...

Having updated my HP Z440 workstation, today I wanted to revoke the 2011 cert. I ran .\Update_UEFI-CA2023.ps1 -Revoke (running version...

I would like to give some feedback on updating my older HP Z440 workstation: I first had to remove the bios admin password by removing a...

I would like to update the secure boot certificates of an older HP Z440 workstation. It has a bios password on it, and the password can...