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Using Your VAIO Computer >
Using Fingerprint Authentication
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Keep your finger in contact with the fingerprint sensor while swiping.
Fingerprint registration may fail if you move your finger too quickly or too slowly. 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 too 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.