I can provide more targeted instructions or specific PowerShell scripts based on your situation. Share public link
If you set up recovery options before forgetting the password, you may be able to regain access:
The most reliable and safest way to reset your BIOS password is by contacting HP directly. Prerequisites hp zbook 15 g5 bios password reset
Repeat this process three times until the system prompts you for . Press F5 to initiate the SpareKey sequence. Answer your three security questions correctly.
If approved, HP will email you a customized file or an un-string clear utility. Copy this file to a FAT32-formatted USB flash drive. Plug the USB drive into your powered-off ZBook. I can provide more targeted instructions or specific
: The tool usually requires a USB drive to create a bootable media. Use a tool like Rufus (for Windows) or Etcher (for Windows, macOS, or Linux) to make the USB drive bootable with the BIOS password reset tool.
: On older PCs, removing the coin-cell CMOS battery resets the BIOS settings. On the ZBook 15 G5, doing this will only reset the system clock. The password remains securely written to the security chip. Method 1: Contact HP Enterprise Support (Recommended) Press F5 to initiate the SpareKey sequence
Turn on the ZBook 15 G5 and press F10 to enter BIOS. Input Wrong Passwords: Enter a wrong password three times.
“Old hardware doesn’t forget. It just needs the right key.”
: Attach the SOIC8 clip to the chip and use the CH341A programmer to read the chip's current binary data. Save multiple backups of this original .bin file.
The Complete Guide to HP ZBook 15 G5 BIOS Password Reset Forgetting the BIOS password on your HP ZBook 15 G5 mobile workstation can completely lock you out of critical hardware settings. This article provides a comprehensive, step-by-step guide to understanding, troubleshooting, and resolving a locked BIOS on this specific device. Understanding HP ZBook 15 G5 Security