Can't do anything on my HP probook 455 G5

[jgms763]

So I bought my PC on Ebay, and upon recieving it I can't get into windows because it says that there is no operating system installed, yet I even double checked on my desktop and I can boot into the drive on there, also, I can't change ANY BIOS settings because everything is locked down with a BIOS Admin Password, I can't even boot from USB drives because it also tells me that there is no operating system, I have tried just about everything there is, including removing the CMOS battery and the laptop battery, and keeping it unplugged with no source of power for over an hour and it still did not clear anything, also, I have contacted the seller and he says he does not accept returns and doesn't know anything about the password as the PC hasn't been used in a couple years, any help would be greatly appreciated. Also I have already contacted HP and they said that due to their new policy they are not allowed to help without me sending the computer in, but I cannot afford to send it and have it fixed.

[Paul_Tikkanen · Accepted solution]

Hi:

Unfortunately, there is nothing we can do to help you, since HP will no longer supply the required SMC.bin file that is used to clear the BIOS password.

That is the only way it could be done.

HP issued this document recently...

https://support.hp.com/us-en/document/c06368824

Also the forum rules were amended on 1 March 2019, which no longer allow us to help with providing unlock codes, etc., to clear BIOS passwords. Rule 4.d...

https://h30434.www3.hp.com/t5/custom/page/page-id/hp.rulespage