Sony VGN-SR290JVB - Manual (Page 99)

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Customizing Your VAIO Computer
Setting the Password
In addition to the Windows password, you can use BIOS functions to set two types of passwords to protect your computer:
the power-on password and the hard disk password.
Once you have set the power-on password, you will be prompted to enter the password after the VAIO logo appears to start
your computer. The power-on password allows you to protect your computer from unauthorized access.
The hard disk password provides additional security for the data stored on your hard disk drive. If you set the hard disk
password, other users will not be able to access the data without knowing the password, even if the password-protected hard
disk drive is removed from your computer and is installed in another computer.