Lenovo ThinkPad Edge E525 - Manual (Page 78)

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 very dry.
• Your finger is stained with dirt, mud, or oil.
• The surface of your finger is very different from when you enrolled your fingerprint.
• Your finger is wet.
• A finger that has not been enrolled is used.
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.
• If your hands are too dry, apply lotion to them.
Notice on deleting data from your hard disk drive
As computers spread into every corner of life, they process more and more information. The data on your
computer, some of which is sensitive, is stored on a hard disk drive. Before you dispose of, sell, or hand over
your computer, be sure to delete data stored on it.
Handing your computer over to someone else without deleting the loaded software, such as operating
systems and application software, may even violate License Agreements. You are advised to check the
terms and conditions of those License Agreements.
There are methods that seem to delete the data:
• Move the data to the recycle bin, and then click Empty recycle bin.
• Use the Delete option.
• Format your hard disk drive, using the software for initializing it.
• Using the recovery program, provided by Lenovo, bring the hard disk drive back to factory-ship state.
These operations, however, only change the file allocation of the data; they do not delete the data itself. In
other words, the data retrieval processing is disabled under an operating system such as Windows. The
data is still there, even though it seems to be lost. Thus, it is sometimes possible to read the data by use of
special software for data recovery. There is a risk that people of bad faith may read and misuse the critical
data on hard disk drives for unexpected purposes.
To prevent leakage of data, it becomes very important that you take responsibility for deleting all the data
from the hard disk drive when you dispose of, sell, or hand over your computer. You can destroy the data
physically by smashing the hard disk drive with a hammer, or magnetically by means of strong magnetic
power, thus making the data unreadable. But we recommend that you make use of the software (payware) or
service (pay service) specifically developed for the purpose.
60 User Guide