The HP ProBook/EliteBook BIOS Password Reset Utility is a free, downloadable tool that enables users to reset the BIOS password on HP ProBook and EliteBook laptops. The utility works by exploiting a vulnerability in the BIOS firmware, allowing it to bypass the password prompt and reset the password to a default value. This utility supports a wide range of HP ProBook and EliteBook models, including those from the 2010s and 2020s.

Only use such utilities on hardware you legally own.

The utility functions as a bootable DOS-based environment that can detect system information (UUID, Serial Number) and clear the password from the security chip.

You do not need to understand the internals to use the tool, but for technicians and curious minds, here is the simplified process:

by Mazzif is a third-party, community-developed tool designed to clear forgotten BIOS administrator passwords on older HP business-class laptops. While it remains a popular "last resort" for legacy hardware, it is not endorsed by HP

According to documentation from Mazzif's original release , the utility officially supports a range of models including:

HP Business PCs - Forgotten or lost BIOS password | HP® Support