Lenovo ThinkPad P40 Yoga User Manual page 79

Attention: If you always use your fingerprint to log on to the computer, you might forget your passwords.
Write down your passwords, and keep them in a safe place. If you forget your power-on password,
you must take your computer to a Lenovo authorized servicer or a marketing representative to have the
password canceled. If you forget your hard disk password, Lenovo cannot reset your password or recover
data from the storage drive. You must take your computer to a Lenovo authorized servicer or a marketing
representative to have the storage drive replaced. Proof of purchase is required, and a fee will be charged
for parts and service.
Setting the fingerprint reader
You can change some advanced settings in the ThinkPad Setup program, see "Using the ThinkPad Setup
program" on page 70.
You can set the following configurations in the ThinkPad Setup program:
• Predesktop Authentication: Enables or disables fingerprint authentication before the operating system
is loaded.
• Reader Priority: Defines the priority for the fingerprint readers if an external fingerprint reader is attached.
• Security Mode: Specifies the settings of the security mode.
• Password Authentication: Enables or disables the password authentication.
Note: This item is displayed only if High security mode is enabled.
• Reset Fingerprint Data: Select this item to erase all of the fingerprint data stored in either the internal
or external fingerprint reader.
Maintaining the fingerprint reader
The following actions could damage the fingerprint reader or cause it not to work properly:
• Scratching the surface of the reader with a hard, pointed object.
• Scraping the surface of the reader with your fingernail or anything hard.
• Using or touching the reader with a dirty finger.
If you notice any of the following conditions, gently clean the surface of the reader with a dry, soft, lint-free
cloth:
• The surface of the reader is dirty or stained.
• The surface of the reader is wet.
• The reader often fails to enroll or authenticate your fingerprint.
If your finger has any of the following conditions, you might not be able to register or authenticate it:
• Your finger is wrinkled.
• Your finger is rough, dry, or injured.
• Your finger is stained with dirt, mud, or oil.
• The surface of your finger is different from when you enrolled your fingerprint.
• Your finger is wet.
• A finger is used that has not been enrolled.
To improve the situation, try the following:
• Clean or wipe your hands to remove any excess dirt or moisture from the fingers.
• Enroll and use a different finger for authentication.
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Chapter 5 Security