Go to a site like BIOSBug or BIOSPassword on another device.
If you are locked out of BIOS, you cannot boot to Windows. Any service claiming otherwise is a scam. how to remove bios password hp elitebook 840 g1
If software methods fail, hardware-level intervention is required. Reset forgotten HP laptop bios password A [12345678] Go to a site like BIOSBug or BIOSPassword on another device
Removing a BIOS password from an HP EliteBook 840 G1 Go to product viewer dialog for this item. then move to hardware methods.
removing the CMOS battery—it won't work. Start with the master password websites, then move to hardware methods.