I can't find the Legacy Boot option in my BIOS

[HalfHalf]

I can't find the Legacy Boot option in my BIOS.

I have searched everywhere, and couldn't find an answer.

Here is every option in my BIOS that I can change and what they are set to.

Security

Administrator Password [Clear]

Power-On Password [Clear]

TPM Device [Available]

TPM State [Enable]

Clear TPM [No]

Configuration

Language [English]

Virtualization Technology [Enabled]

Fan Always On [Disabled]

Action Keys Mode [Disabled]

USB Charging [Enabled]

Battery Remaining Time [Disabled]

Adaptive Battery Optimizer [Enabled]

Keyboard Backlight Timeout [30 sec]

S3/S4/S5 Wake on LAN [Disabled]

Boot Options

POST Hotkey Delay (sec) [0]

USB Boot [Enabled]

Network Boot [Disabled]

Network Boot Protocol [IPv4+IPv6 (UEFI)]

Secure Boot [Disabled]

Platform Key Enrolled

Pending Action None

UEFI Boot Order

USB Flash Drive/USB Hard Disk

USB CD/DVD ROM Drive

OS Boot Manager

! Network Adapter

[ub6424]

Hello @HalfHalf 

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

If your bios version is older than F.25 Rev.A

(1) Update BIOS

HP Notebook System BIOS Update (AMD Processors)

F.25 Rev.A

11.6 MB

Oct 21, 2021

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.

"

(2) Reboot

(3) Enter BIOS > Advanced > Secure Boot Configuration > Legacy Support Enable and Secure Boot Disable

(4) If (3) is not present in BIOS:

Send picture of F9 Boot Device Options menu

Start notebook ... ESC ... F9 Boot Device Options

[HalfHalf]

Thank you!

This could very well be my solution!

Except for one thing: F10 isn't working to get into the BIOS anymore.

The update has been installed succesfully.

When I boot up my computer, if I hold down F10, it just continues to Windows as usual.

No delays, no pauses, no nothing.

[ub6424]

Hello @HalfHalf 

(1) Turn off the computer and wait five seconds

(2) Turn on the computer, and then immediately press the [ESC] key repeatedly until the Startup Menu opens

(3) Press [F10] to open the BIOS Setup Utility

[HalfHalf]

Hello!

Sorry for the long delay between messages.

The Legacy Boot Option does not appear in my BIOS.

The BIOS has been updated to revision F.25, but it does not appear.

[ub6424]

Please send pictures of bios

[HalfHalf]

Here are some pictures:

[ub6424]

So I cannot see legacy options on your pictures, you are right...

(1) Disable USB charging ( when computer powered off )

(2) Disable Secure boot is ok

(3) Take USB flash drive and create a bootable Linux Ubuntu system:

https://www.howtogeek.com/howto/linux/create-a-bootable-ubuntu-usb-flash-drive-the-easy-way/

(4) Start your computer, constantly press and release ESC key, then choose F9 boot menu to boot from usb flash drive

(5) Does this work ?

[HalfHalf]

I have disabled USB charging in my BIOS and I have a Ubuntu bootable USB.

I've booted from the USB flash drive. 

I'm in the install enviroment for Ubuntu now.

What do I do now?

[ub6424 · Accepted solution]

This was just a test to show that Legacy Boot works. So it confirms that only <Secure Boot> needs to be disabled.

You can shutdown ubuntu and remove usb flash drive...

Do you have any other questions ?