Power off the laptop completely. Press and hold the Power button for 25 seconds . Then, turn on the computer. A successful reset is often indicated by the system restarting and allowing access to BIOS diagnostics.
Answer your three security questions. If successful, you will be granted access to reset the password. 2. The CMOS Reset Method (G7 Series) hp elitebook 840 g7 bios password reset
If you previously configured , you can recover or reset your password by answering three personal identification questions. Power off the laptop completely