This method involves using jumpers and motherboard pins to reset the BIOS password. This method requires technical expertise and should be performed by an experienced user.
Try Method 1 first. If no "System Disabled" code appears, proceed to Method 2 . If you aren't comfortable with hardware, take it to a local PC repair shop (should cost $30–50). How To Reset Bios Password Hp Elitebook 840 G3
You provide HP with your laptop’s Serial Number and UUID. They send a file that you place on a FAT32-formatted USB drive. You then boot the laptop while holding Windows + Up Arrow + Down Arrow . This method involves using jumpers and motherboard pins