Here’s a technical guide on resetting the BIOS password for an HP EliteBook 840 G6.

If you can log into Windows but the BIOS is locked:

Some HP laptops generate a "System Disabled" code after multiple failed password attempts. If yours provides an 8-digit code (sometimes starting with "A"), you can use third-party sites like BiosPark to generate a potential unlock key. 3. Advanced Hardware-Level Methods

If you have access to the operating system, you might be able to use configuration utilities.