Lenovo ThinkPad T450s, User Manual, Page: 82 / 185

• To provide reliable security for the UEFI BIOS, use the security chip and a security application with a
Trusted Platform Module management feature. Refer to “Setting the security chip” on page 66.
Note: The Windows 7 and Windows 8.1 operating systems support the TPM management feature.
• If a Disk Encryption hard disk drive and 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, such as Microsoft Windows BitLocker
®
Drive Encryption. See “Using Windows BitLocker
Drive Encryption” on page 66.
• Before you dispose of, sell, or hand over your computer, delete data stored on it. For more information,
refer to “Notice on deleting data from your the storage devices” on page 70.
The hard disk drive built into your computer can be protected by the 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 the Windows 7 and Windows 8.1
operating systems. It is supported in the Ultimate and Enterprise editions of the Windows 7 operating
system, and the Professional and Enterprise editions of the Windows 8.1 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 uses a Trusted Platform Module to provide enhanced protection for your data and to ensure early
boot component integrity. A compatible TPM is defined as a V1.2 TPM.
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, Encryption solid-state drive, or Encryption hybrid drive
Some models contain the Disk Encryption hard disk drive, Encryption solid-state drive or Encryption hybrid
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, set a
hard disk password for the internal storage device.
Setting the security chip
Strict security requirements are imposed on network client computers that transfer confidential information
electronically. Depending on the options you ordered, your computer might have an embedded security chip,
a cryptographic microprocessor. With the security chip and Client Security Solution, you can do the following:
• Protect your data and system
• Strengthen access controls
• Secure communications
Setting the security chip
The choices offered on the Security Chip submenu under the Security menu of ThinkPad Setup are as
follows:
66
User Guide