download the bios file from HP:
>> example name is: M60_0262.BIN for a z440

create a directory structure on the boot stick /in my case a freedos boot stick:
\Hewlett-Packard\BIOS\New
>> put the bios file under the New directory

But the maschine, insert the stick, choose F10 to access Bios.
In the bios choos Bios update section ... you should now find the new bios file and you are able to start the update

---------
see also:
https://www.youtube.com/watch?v=orctVrckDOc

computer2know :: thank you for your visit :: have a nice day :: © 2026