Sony VGN-BX540BW - Manual (Page 6)

6
Setting the Password
You can use BIOS functions to set two types of passwords to protect your
computer: power-on password and hard disk password.
Once you have set the power-on password, you will have to enter the
password after the VAIO logo appears to start your computer. The
power-on password will allow you to protect your computer from
unauthorized access.
The hard disk password provides additional security for the data stored
on your hard disk. If you set the hard disk password, no other users will
be able to access the data without knowing the password, even if the
hard disk is installed in another computer.
You can substitute fingerprint authentication for entering these passwords. See "Using
Fingerprint Authentication" on page 14 for more information.