One popular utility for resetting BIOS passwords is "Hiren's BootCD". It's a free, bootable CD that contains various tools, including a BIOS password reset tool. You can create a bootable USB drive from the ISO file and use it to reset the BIOS password.
Some HP laptops, including the EliteBook 840 G6, have a jumper on the motherboard that can be used to reset the BIOS password. You'll need to consult the laptop's service manual or online documentation to locate the jumper. Be careful when working with internal components . hp elitebook 840 g6 bios password reset utility
HP provides a utility called the "HP BIOS Configuration Utility" (BCU) that can be used to reset the BIOS password. However, this utility requires a password to unlock the BIOS settings. If you've forgotten the password, you'll need to use other methods. One popular utility for resetting BIOS passwords is