Contents

Read this first

v

Important safety information

vi

Conditions that require immediate action . .

vii

Safety guidelines

vii

Chapter 1. Product overview

1

Locating computer controls, connectors, and

 

indicators

1

Front view

1

Right-side view

3

Left-side view

4

Bottom view

5

Rear view

6

Status indicators

6

Locating important product information

8

Machine type and model information

8

FCC ID and IC Certification information . . . .

8

Features

9

Specifications

10

Operating environment

11

Lenovo programs

11

Accessing Lenovo programs on the Windows

 

7 operating system

11

Accessing Lenovo programs on the Windows

 

8 operating system

13

Lenovo program overview

14

Chapter 2. Using your computer . . .

17

Registering your computer

17

Frequently asked questions

17

Special keys

19

Function keys

19

Windows key

20

Using the ThinkPad pointing device

20

Power management

22

Checking the battery status

22

Using the ac power adapter

23

Charging the battery

23

Maximizing the battery life

23

Managing the battery power

24

Power-saving modes

24

Connecting to the network

25

Ethernet connections

25

Wireless connections

26

Using an external monitor

29

Changing display settings

31

Using the Extend desktop function

31

Setting up a presentation

32

Using audio features

32

Using the camera

33

Using a media card

34

Inserting a media card

34

Removing a media card

34

Chapter 3. You and your computer . . 35

Accessibility and comfort

35

Ergonomic information

35

Comfort

36

Accessibility information

36

Traveling with your computer

37

Travel tips

37

Travel accessories

38

Chapter 4. Security

39

Attaching a mechanical lock

39

Using passwords

39

Passwords and sleep mode

39

Typing passwords

39

Power-on password

40

Hard disk passwords

40

Supervisor password

42

Hard disk security

44

Setting the security chip

45

Using the fingerprint reader

46

Notice on deleting data from your hard disk drive

 

or solid-state drive

48

Using firewalls

48

Protecting data against viruses

48

Chapter 5. Recovery overview . . . .

51

Recovery overview for the Windows 7 operating

 

system

51

Creating and using a recovery media . . . .

51

Performing backup and recovery operations .

52

Using the Rescue and Recovery workspace .

53

Creating and using a rescue medium . . . .

54

Reinstalling preinstalled programs and device

 

drivers

55

Solving recovery problems

55

Recovery overview for the Windows 8 operating

 

system

56

Refreshing your computer

56

Resetting your computer to the factory default

 

settings

56

Advanced startup options

56

© Copyright Lenovo 2013

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Lenovo 20AA000MUS, T431s, 20AA000BUS manual Contents

20AA, T431s, 20AA000MUS, 20AA000BUS specifications

The Lenovo ThinkPad series has long been a favorite among business professionals and tech enthusiasts alike, and the Lenovo 20AA000BUS, 20AA000MUS, and T431s models exemplify the brand's commitment to innovation, performance, and rugged design. These laptops are designed for enterprise users who require reliability and versatility in their everyday tasks.

The Lenovo 20AA000BUS model features a robust Intel Core processor that ensures smooth multitasking and quick application launches. Paired with a generous amount of RAM, users can easily run demanding applications and simultaneously manage numerous browser tabs without a hitch. The full HD display provides sharp visuals and vibrant colors which enhance productivity, whether one is working on spreadsheets, watching videos, or conducting presentations.

In terms of connectivity, these models boast several USB ports, HDMI output, and an SD card reader, which facilitate seamless integration with various peripherals and external devices. With the inclusion of robust wireless options, including Wi-Fi and Bluetooth, users can stay connected throughout their workspaces and collaborate effortlessly with coworkers.

Security features are a priority for Lenovo, and the 20AA000MUS model does not disappoint. Built with a fingerprint reader and a webcam privacy shutter, users can feel confident in their data safety. Lenovo's Trusted Platform Module (TPM) technology further enhances system security by encrypting sensitive data.

The T431s, a prominent model in this lineup, prides itself on its sleek and lightweight design, making it easily portable for professionals on the go. The carbon fiber and magnesium alloy chassis not only lends to its durability but also ensures that it withstands the rigors of daily travel.

Battery life is another highlight of these models, capable of lasting through an entire workday, which is a significant advantage for users who often find themselves away from power sources. The Quick Charge feature allows for rapid recharging, ensuring that users can quickly power up their devices before heading into meetings or events.

Overall, the Lenovo 20AA000BUS, 20AA000MUS, and T431s represent a blend of advanced technology, user-centric design, and robust security features. They stand out as reliable companions for professionals seeking efficiency and performance in their computing devices. Whether in the office or on the move, these laptops meet the demanding needs of the modern workforce.