Notice On Deleting Data From Your Storage Drive - Lenovo ThinkPad E550 User Manual

• 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.
• If your hands are dry, apply lotion to them.

Notice on deleting data from your storage drive

Some of the data stored on the storage drive might be sensitive. Handing your computer over to someone
else without deleting the loaded software, such as operating systems and application software, might even
violate license agreements. Be sure to delete data stored on the storage drive before you dispose of, sell,
or hand over your computer.
You can use the following methods to delete data from the storage drive:
• Move the data to the Recycle Bin, and then empty the Recycle Bin.
• Delete the data.
• Format your storage drive, using the software for initializing it.
• Use the recovery program provided by Lenovo to bring the storage drive back to the factory default
settings.
These operations, however, only change the file location 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 might read and misuse the critical
data on the storage drive for unexpected purposes.
To prevent leakage of data, it is important that you delete all the data from the storage drive when you
dispose of, sell, or hand over your computer. You can destroy the data physically by smashing the storage
drive with a hammer, or magnetically by means of strong magnetic power, thus making the data unreadable.
But it is recommended that you use the software (payware) or service (pay service) developed for that
purpose. The process might take several hours.
For disposing of data on the solid-state drive, Lenovo provides the Drive Erase Utility for Resetting the
Cryptographic Key and Erasing the Solid State Drive tool. For disposing of data on the hard disk drive or
hybrid drive, Lenovo provides the Secure Data Disposal™ tool. Go to http://www.lenovo.com/support to
download these tools.
If an Encryption solid-state drive or a Disk Encryption hard disk drive or a Disk Encryption hybrid drive is
supported and installed in your computer, you can logically dispose of all the data on the drive in a short
time by erasing the cryptographic key. The data encrypted with the old key is not physically erased but
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User Guide