Lenovo ThinkPad Yoga 11e, User Manual, Page: 70 / 164

• Record your password and store it in a safe place. If you forget the user hard disk password, or both
user and master hard disk passwords, Lenovo cannot reset your passwords or recover data from the
hard disk drive or solid-state drive. You must take your computer to a Lenovo reseller or a marketing
representative to have the hard disk drive or solid-state drive replaced. Proof of purchase is required,
and a fee will be charged for parts and service.
Hard disk security
To protect passwords from unauthorized security attacks, refer to the following tips to maximize security:
• Set a power-on password as well as a hard disk password for your internal hard disk drive or solid-state
drive. Refer to the procedures in “Power-on password” on page 49 and “Hard disk passwords” on page
52. For security, a longer password is recommended.
• If a Disk Encryption storage drive is installed in your computer, be sure to protect the contents of your
computer memory from unauthorized access by use of drive encryption software, such as Microsoft
Windows BitLocker
®
Drive Encryption. Refer to “Using Windows BitLocker Drive Encryption” on page 54.
• Before you dispose of, sell, or hand over your computer, be sure to delete data stored on it. For more
information, refer to “Notice on deleting data from your hard disk drive or solid-state drive” on page 54.
Note: The hard disk drive or solid-state drive built into your computer can be protected by UEFI BIOS.
Using Windows BitLocker Drive Encryption
To help protect your computer against unauthorized access, use the drive encryption software, such as
Windows BitLocker Drive Encryption.
Windows BitLocker Drive Encryption is an integral security feature of some editions of the Windows
operating system. It can help you protect the operating system and data stored on your computer, even
if your computer is lost or stolen. BitLocker works by encrypting all user and system files, including the
swap and hibernation files.
BitLocker provides enhanced protection for your data and to ensure early boot component integrity.
To check the BitLocker status, go to Control Panel, and click System and Security ➙ BitLocker Drive
Encryption .
For more information about Windows BitLocker Drive Encryption, see the help information system of the
Windows operating system, or search for “Microsoft Windows BitLocker Drive Encryption Step-by-Step
Guide” on the Microsoft Web site.
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:
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User Guide