If the built-in password reset feature doesn't work, you can use a third-party BIOS password reset tool. One popular tool is . To use this method:

If the laptop is under warranty or you are an authorized IT manager for a company:

If software methods fail, the only remaining "top" method involves physically reflashing the BIOS chip.

For advanced users: The HP ProBook 450 G2 has a specific chip (KBC – Keyboard Controller) that holds the password. Shorting two pins on the (usually an ITE or SMSC chip) can reset it.

Many articles mention using a USB drive with a file named SMC.bin . For the , this method rarely works . HP disabled this backdoor after the Spectre/Meltdown microcode updates. If your BIOS is version F.50 or higher, ignore SMC.bin.

The ProBook 450 G2 utilizes a specific implementation of firmware security that moved away from the easily bypassable CMOS battery removal of older generations.

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