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HP Recommended
Microsoft Windows 10 (64-bit)

Hello, im very new here so forgive if i missed something or did not provide enough data..
recently purchased a Z840 pc that was used by mercedes benz,, after they were done using it i suppose they crushed/ wiped drives and sold it. i purchased such a unit but with a locked bios, does anyone know if HP can somehow provide a master password or if there are ways to remove such password. i own few more z840's but this is the first one with this issue.

Serial No. [personal information removed]

Product No. N0Q54EC#ABD

any information would be helpful.

I have tried few methods of clearing cmos and removign battery but i suppose the password is stored on non volatile memory. I can get into Windows but i am not sure if i can update bios and add newer processors to the system.

1 REPLY 1
HP Recommended

BIOS (and Power) passwords are encoded into the firmware of the motherboard and we have no access of any kind to that. Changing such a password requires completely replacing the motherboard with a new one that does NOT have a password encoded into the firmware -- and that usually costs a LOT more than simply replacing the computer.


I wish we could help you -- but we're not allowed to, since we have no way from here to verify ownership of any computer.


Therefore, according to the Community's Rules of Participation:


4d. No posts shall include instructions/directions intended to bypass or subvert security mechanisms such as lock screens, BitLockers, BIOS lock, passwords, fingerprint/biometry scanners, PINs nor any other safety measures.



I am a volunteer and I do not work for, nor represent, HP
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.