Dell Bios Password Unlock — Key Hint Number ((free))

Once you have the hint number, you can use it to unlock your BIOS password. Here's how:

When a Dell computer has a BIOS administrator password set and you enter it wrong three times, the system displays a message with a number like:

a unique 8-character code generated by modern Dell laptops after three failed password attempts

That long number is sometimes called the or hint number — officially, it's the System Number or Hash Code . It is generated based on the password you set and the system’s Service Tag.