Disable secure boot

[NotAFury]

Hello everyone,

I confirm that I searched the forum for an answer before posting here!

I want to disable Secure Boot in the BIOS of an HP Zbook Fury G9. I think I need to do this so I can install a new OS (Linux) from a bootable USB. With my current BIOS setup (secure boot enabled by default), I got a message that the image is not authenticated.....

I saw in this forum a previous post with the same title and I tried to follow the instructions described in the URL but it's not the same version/reference and the BIOS menu is different and I can't find no "legacy" choice in my BIOS.

I tried unchecking the "Secure Box Enabled" box and after confirming it asks to enter a 4 digit PIN. I do that (or I think I do that). On the next reboot I go back to the BIOS menu for Secure Boot and the box is checked again. I don't understand... so I need your help.

I tried several times.

Regards

[ub6424]

Hello @NotAFury 

Sorry to hear that you are having problems ... I would like to help you.

(1) To confirm the deactivation of <Secure Boot>, use the keys above the letters to enter the 4 digit PIN, then press ENTER.

(2) Do you still have a bootable Windows system?

Kind regards

[NotAFury]

thanks @Ub6424,

(1) I'll try with the # keys above the letters I mostly used the numeric keypad (on the right). I think I've tried but so I can't be sure I did it the way you say.

(2) Yes, I added a second SSD for the new OS, the original SSD with Windows is intact.

Regards

[ub6424]

Hello @NotAFury 

Thanks for reply.

Let me check your basic system configuration.

(1) Run    msinfo32

- Select <System Summary>:

--->>> Copy/screenshot/paste following key/value pairs:

OS Name

Version

System Model

System SKU ( equals HP product number (p/n) )

Processor

BIOS Version/Date

(2) Please report your results

[NotAFury]

OSName : Microsoft Windows 10 Professionnel

Version:10.0.19045 Build 19045

System model: HP Zbook Fury 16 G9 Mobile Workstation PC

Processor: i7-12800HX

Bios version/Date: HP U96 Ver. 01.02.05, 13/07/2022

SMBIOS: 3.4

Mode BIOS : UEFI

Etat du demarrage sécurisé : Activé

I've tried the PIN code with key up to the letters. At the next reboot The secure boot check is checked again.

[ub6424]

Hello @NotAFury 

(1) Create Windows system <restore point>

How to Create a System Restore Point on Windows 10 or Windows 11

(2) Download and install BIOS Update

HP BIOS and System Firmware (U96)

01.03.02 Rev.A

19.5 MB

Sep 22, 2022

Download

Why should you install the update ?

https://support.hp.com/us-en/document/ish_4123786-2338478-16

Quote: "

Updating the BIOS is recommended as standard maintenance of the computer. It can also help resolve the following issues:

• An available BIOS update resolves a specific issue or improves computer performance.
• The current BIOS does not support a hardware component or a Windows upgrade.
• HP Support recommends installing a specific BIOS update.

"

(3) Reboot

(4) Let BIOS be installed until it's completely done !

(5) Download and install / update

Intel Management Engine Driver

2212.16.0.2766 Rev.A

128.8 MB

Apr 14, 2022

Download

(6) Reboot Windows

(7) --->>> Test to disable <Secure Boot> again ...

(8) Please report your results

[NotAFury · Accepted solution]

Done !

Thank you @Ub6424 for your support.

The most important is thant now it works well. But I'm not sure about the root cause nor what is the solution.

 After update (BIOS and Intel ....)  I've tried and I've enter the pin code with keys above the letters and WITHOUT pressing [shift].

The pin code entered must be displayed and now it's fine.

Previously I used mainly the keypad on the right, and after your first email I've tried the kays above the letter but I'm not sure if I pressed the [shift] or not. It seems to be natural to press [shift] to use the key in a numeric way (i.e.: '1' is above '&') but not here ...

So the solution could be to update firmware or to not use [shift] for the PIN I don't know .... but in this sentence you have the solution ! try both !!!

Thank you again @Ub6424

[ub6424]

---

@NotAFury wrote:

Done !

Thank you @Ub6424 for your support.

The most important is thant now it works well. But I'm not sure about the root cause nor what is the solution.

 After update (BIOS and Intel ....)  I've tried and I've enter the pin code with keys above the letters and WITHOUT pressing [shift].

The pin code entered must be displayed and now it's fine.

Previously I used mainly the keypad on the right, and after your first email I've tried the kays above the letter but I'm not sure if I pressed the [shift] or not. It seems to be natural to press [shift] to use the key in a numeric way (i.e.: '1' is above '&') but not here ...

So the solution could be to update firmware or to not use [shift] for the PIN I don't know .... but in this sentence you have the solution ! try both !!!

Thank you again @Ub6424

---

You're welcome !

Good luck