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No password to access BIOS HP Compaq 6730 B

Compaq 6730 B

Bought a second hand Compaq 6730B laptop, I want to access the BIOS to make some changes and I have no password,  can anyone help with this problem..  Thanks..  Joe L.

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No password to access BIOS HP Compaq 6730 B



Contact HP and they should be able to send you a customized SMC.bin file which you can use at boot to reset the password.


When talking to the HP rep ask them to escalate your service request.


Or download these files.


Insert clean USB flash drive.


Then run USB Image tool.


Choose the flash drive then click on RESTORE.


After restore remove flash drive.


Insert flash drive into locked laptop and boot. ”If HDD is installed remove before booting.”


At C:\OUTPUT   type CD..  “Then hit enter”


Type HPBR   “Then hit enter”


First thing is to save your settings.


Select #3 re-program.


Press “S” to save system information.


Type HPBR and hit enter.


Select   “FIRST RUN”


Then select model.


After reboot repeat same as above but this time SELECT “SECOND RUN”


Some instructions here. “If you cannot boot from USB there are instructions to make a bootable HDD.”​​-unlock-for-dos.html


More here.​​Probook-Elitebook-BIOS-Password-Reset-Utility




I must inform you that these services are not endorsed by HP, and that HP is not responsible for any damage that may arise to your system by using these services. Please be aware that you do this at your own risk.

If you need further assistance please start a new post as I no longer will be a part of the HP Support Community.
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation