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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 (HDD). Before you dispose of, sell, or
hand over your computer, make 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 Agreements.
There are methods that seem to delete the data:
• Move the data to the recycle bin, and then choose the Empty recycle bin command.
• Use the Delete command.
• 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 le 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) specically developed for the purpose.
For disposing of data on the hard disk drive, Lenovo provides such software as PC Doctor for DOS and the
Secure Data Disposal tool. Software provides the interface for full erasure of the contents of a hard disk. To
download either application, go to:
http://www.lenovo.com/support
Note: Running the application will take a couple of hours.
Using and understanding rewalls
If your system is preintalled with a rewall program, it protects against computer Internet security threats,
unauthorized access, intrusions, and Internet attacks. It also protects your privacy.
For more information about how to use the rewall program, refer to the on-line help that comes with
the program.
Protecting data against viruses
Your computer is preinstalled with an antivirus program so you can detect and eliminate viruses. The
antivirus program is designed to help you detect and eliminate viruses.
Lenovo provides a full version of antivirus software on your computer with a free 30-day subscription. After
30 days, you must renew the license to continue receiving the antivirus software updates.
Chapter 4. Security 67