The ZBook 15 G5 uses a security system designed to prevent unauthorized access. If you fail to enter the password three times, the system will display a System Disabled message followed by a 5x4 or 8-digit code (e.g., i 54321678 ). This code is based on your specific motherboard and cannot be guessed.
Turn on your ZBook 15 G5 and press F10 repeatedly to enter the BIOS setup. When prompted for the password, enter the wrong password three times.
Attempt to replicate the settings back to the chip using: BiosConfigUtility64.exe /setconfig:config.txt hp zbook 15 g5 bios password reset free
Historically, the most reliable free way to reset an HP ZBook BIOS password was through HP Support. For older models, agents could provide a customized file named SMC.bin .
HP laptops include a built-in recovery mechanism called SpareKey. If you set this up when you first configured the laptop, you can bypass the password immediately. Turn on the ZBook 15 G5. Press repeatedly to trigger the BIOS password prompt. Press F7 or click the SpareKey option on the screen. Answer the three pre-configured security questions. The ZBook 15 G5 uses a security system
Run the command to read the current settings to a text file: BiosConfigUtility.exe /getconfig:config.txt
Shorting random pins on the motherboard can cause electrical shorts, destroying the mainboard without wiping the secure NVRAM space where the password is kept. Turn on your ZBook 15 G5 and press
: Set up your recovery questions immediately after clearing the password.
Note: This method is entirely free from a software perspective but requires technical comfort with command-line utilities and basic hardware handling. Alternative Solutions to Avoid
: If a code appears (often 8 digits), note it down.