(Requires basic disassembly and a steady hand).
With patience, a steady hand, and this guide, you can turn that BIOS-locked HP ProBook 450 G2 from a brick back into a fully functional laptop. Good luck. hp probook 450 g2 bios password reset
Forgetting a BIOS password is a unique kind of digital nightmare. You press the power button on your HP ProBook 450 G2, the screen flickers to life, and instead of booting into Windows, you are met with a padlock icon or a text box demanding a "System Password" or "Administrator Password." Without this code, your laptop is essentially a $500 paperweight. (Requires basic disassembly and a steady hand)
If your ProBook has BIOS version or higher, HP patched the hardware bypass. In that case, skip straight to the SPI Flash Programmer method or pay HP for the master code. Forgetting a BIOS password is a unique kind
Unlike a Windows login password, which can be reset with a USB drive, the BIOS password is stored on a chip on the motherboard. HP designed the ProBook 450 G2 (a popular business laptop from the 2014-2015 era) with security in mind. Consequently, resetting this password is not straightforward.