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Note: You can reset security chip feature settings by setting Change TPM State to Clear. Therefore, we
recommend that you set up a supervisor password/user password before you use security chip features so
that a higher level of security can prevent a third party from resetting security chip feature settings.
Notice on deleting data from your solid-state drive
Some of the data stored on the solid-state 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 solid-state drive before you
dispose of, sell, or hand over your computer.
You can use the following methods to delete data from the solid-state drive:
• Move the data to the Recycle Bin, and then empty the Recycle Bin.
• Delete the data.
• Format your solid-state drive, using the software for initializing it.
• Use the recovery program provided by Lenovo to bring the solid-state 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 solid-state drives for unexpected purposes.
To prevent leakage of data, it is important that you delete all the data from the solid-state drive when
you dispose of, sell, or hand over your computer. You can destroy the data physically by smashing the
solid-state 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 Drive Erase Utility for Resetting the
Cryptographic Key and Erasing the Solid State Drive tool. Go to http://www.lenovo.com/support to
download these tools.
If an Encryption solid-state 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 remains on the drive; however, it cannot be decrypted without the old key.
This feature is also available with Drive Erase Utility for Resetting the Cryptographic Key and Erasing the
Solid State Drive tool.
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User Guide
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