Lenovo ThinkPad X140e - Manual (Page 64)

Attention: You might want to note down your password and keep it in a safe place. If you forget your
supervisor password, Lenovo cannot reset your password. You must take your computer to a Lenovo
reseller or a Lenovo marketing representative to have the system board replaced. Proof of purchase is
required, and a fee will be charged for parts and service.
9. In the Setup Notice window that is displayed, press Enter to continue.
10. Press F10. The Setup Confirmation window opens. Select Yes to save configuration changes and exit.
The next time you open the ThinkPad Setup program, you will be prompted to type your password to proceed.
Hard disk security
To protect passwords from unauthorized security attacks, several of the latest technologies and algorithms
are integrated into UEFI BIOS and hardware design of ThinkPad notebook computers.
To maximize security, do the following:
1. Set a power-on password as well as a hard disk password for your internal solid-state drive or hard disk
drive. Refer to the procedures in “Power-on password” on page 44 and “Hard disk passwords” on page
44. For security, a longer password is recommended.
2. If a Disk Encryption hard disk drive or a Disk Encryption solid-state drive is installed in your computer,
be sure to protect the contents of your computer memory from unauthorized accesses by use of drive
encryption software.
3. Before you dispose of, sell, or hand over your computer, be sure to delete data stored on it. Refer to
“Notice on deleting data from your hard disk drive or solid-state drive” on page 48.
Note: The hard disk drive built into your computer can be protected by UEFI BIOS.
Disk Encryption hard disk drive and Encryption solid-state drive
Some models contain the Disk Encryption hard disk drive or Encryption solid-state drive. This feature helps
to protect your computer against security attacks on media, NAND flash or device controllers by use of
a hardware encryption chip. For the efficient use of the encryption feature, be sure to set a hard disk
password for the internal storage device.
Notice on deleting data from your hard disk drive or solid-state drive
Some of the data stored on the hard disk drive or 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 hard disk
drive or solid-state drive before you dispose of, sell, or hand over your computer.
You can use the following methods to delete data from the hard disk drive or solid-state drive:
• Move the data to the Recycle Bin, and then empty the Recycle Bin.
• Delete the data.
• Format your hard disk drive or solid-state drive, using the software for initializing it.
• Use the recovery program provided by Lenovo to bring the hard disk drive or 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 hard disk drives or solid-state drives for unexpected purposes.
48 User Guide