HP BIOS Passwords

[Craig_W]

I have taken over a network, and for most machines BIOS passwords have not been set, however 2 or 3 seem to have had these set; and there is no documentation anywhere of what these maybe. Has anybody had any joy in removing BIOS Passwords on HP ProDesk 400 G7 machines? Tried removing CMOS batteries, swapping jumpers about etc with no joy.

 

Any ideas appreciated 

[Fazza]

1 hour ago, Craig_W said:

I have taken over a network, and for most machines BIOS passwords have not been set, however 2 or 3 seem to have had these set; and there is no documentation anywhere of what these maybe. Has anybody had any joy in removing BIOS Passwords on HP ProDesk 400 G7 machines? Tried removing CMOS batteries, swapping jumpers about etc with no joy.

 

Any ideas appreciated 

 

This is how I do it:

 

https://www.retrocomputing.co.uk/2025/08/how-to-reset-bios-password-of-any.html

 

Just enter the password wrong until a code comes up and you can use that code to generate a backdoor/engineers password so you can then set a blank password etc.

Edited August 1, 2025 by Fazza

[Craig_W]

@Fazza thanks - worked a treat!

[Fazza]

It's worked 100% for me so far (touch wood) on laptops I have at home that are 20-30 years old and all the modern ones like the DfE laptops we got during covid.