Sony VAIO VGN-GS Series User Manual And Instruction Manual page 100

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Place your fingertip flat in the center of the fingerprint sensor.
Scan your fingerprint from the top joint of the finger to the fingertip.
Keep your finger in contact with the fingerprint sensor while swiping.
Fingerprint registration may fail if you move your finger too fast or too slow. Let the fingerprint sensor take about one second to scan your fingerprint.
You may not be able to register and/or have your fingerprint(s) recognized if your finger is excessively dry or wet, wrinkled, injured, dirty, etc.
Register more than one fingerprint in case that the fingerprint sensor fails to recognize the fingerprint.
Be sure to clean your fingertip(s) and the fingerprint sensor before swiping in order to keep good recognition performance.
Logging Onto Your System
To use the fingerprint authentication function in place of password entry to log onto your system, you need to set the power-
on, hard disk, and Windows passwords and configure your computer for fingerprint authentication.
For setting the power-on, hard disk, and Windows passwords, see Setting the Password
For detailed information, see the help file included with the Protector Suite QL.
Logging onto Windows
If you have registered your fingerprints for your user account, you can substitute fingerprint authentication for Windows
password entry. To log onto Windows, swipe the registered finger across the fingerprint sensor when the Windows log-on
screen appears.
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Customizing Your VAIO Computer
(page 83).
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