While this article focuses on 2021, it’s worth noting that soon after, HP introduced via HP Sure Admin. Newer models (G7, G8, and G9) rely on cloud-based verification. However, the HP ZBook 15 G5 remains in heavy use even today, and the 2021 methods—especially the HP BIOS Configuration Utility approach—continue to work perfectly as of 2025.
For the ZBook 15 G5, HP implemented the architecture. If the laptop is managed by an organization, the BIOS password might be a "BIOS Setup Password" that can be removed remotely or via the HP BCU tool if you have access to the Windows partition. hp zbook 15 g5 bios password reset 2021
Note: This method is less reliable on G5/G6 generations compared to older models. 3. Advanced/Hardware Methods (For Professionals) Technical Paper: BIOS Password Reset Methods for HP