If the above methods don't work for you, or if you're not comfortable performing them, the best option is to contact HP Support directly. They can guide you through the process or provide you with a method specific to your device.
This is the only guaranteed method that does not risk damaging the motherboard. hp zbook 15 g5 bios password reset
Insert the USB drive while the laptop is powered off. Hold down the Windows Key + Arrow Up + Arrow Down simultaneously and press the Power button. Release the keys when the HP logo appears. If the above methods don't work for you,
Contact HP Enterprise Customer Support via their official website or phone line. Submit your proof of ownership, Serial Number, and UUID. HP support will validate your ownership. Insert the USB drive while the laptop is powered off
Unlike consumer laptops, the stores its BIOS password in a non-volatile EEPROM chip. This means that cutting power by removing the CMOS battery will not clear the password. HP’s official policy for lost BIOS passwords on these models typically requires a motherboard replacement if you cannot provide proof of ownership for a custom reset file. 2. Method 1: The SMC.bin Reset (Official HP Support)
Once you regain access to your ZBook 15 G5, take these steps to prevent future lockouts:
Unlike older laptops, the HP ZBook 15 G5 does use a simple CMOS battery for BIOS storage. The password is stored in non-volatile memory within the Embedded Controller (EC) or Super I/O chip. However, you can attempt to reset it by shorting specific pins on the motherboard.