This is the for a home user on a locked HP ProBook 450 G2. It requires technical skill, patience, and about $15 in tools.
If your ProBook generates a recovery code after several failed attempts, you might be able to find a backdoor password. hp probook 450 g2 bios password reset
: Enter an incorrect password three times at the BIOS prompt. This is the for a home user on a locked HP ProBook 450 G2
Do not throw away your ProBook 450 G2 because of a BIOS password. It is a recoverable problem. With $15 in tools and this guide, you can turn that padlock icon into a fully functional business laptop once again. : Enter an incorrect password three times at the BIOS prompt
may still offer assistance if you can provide valid proof of purchase and identification. HP Support Community 2. Potential Reset Methods
Resetting the BIOS password on an HP ProBook 450 G2 Go to product viewer dialog for this item.
If the above methods don't work for you, you can contact HP support for assistance. They may request proof of ownership and provide a BIOS password reset code or guide you through the reset process.