Sony VAIO VGN-CS - Manual (Page 76)

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Using Your VAIO Computer >
Using Fingerprint Authentication
Erasing the Registered Fingerprints
Before disposing of your computer or transferring it to a third person, it is strongly recommended you erase the fingerprint
data registered on the fingerprint sensor after erasing the data stored on your built-in storage device.
To erase the registered fingerprints
1 Turn on the computer.
2 Press the F2 key when the VAIO logo appears.
The BIOS setup screen appears. If not, restart the computer and press the F2 key several times when the VAIO logo
appears.
3 Press the < or , key to select Security to display the Security tab.
4 Press the m key to select Clear Fingerprint Data and press the Enter key.
5 At the confirmation prompt, select Continue and press the Enter key.
The fingerprint data registered on the fingerprint sensor is erased automatically after your system restarts.