Lenovo ThinkCentre M75s - 11A9000DMH User manual

M75s-1 User Guide

Read this first

Before using this documentation and the product it supports, ensure that you read and understand the following:

• Appendix A “Important safety information” on page 77

• Safety and Warranty Guide

• Setup Guide

First Edition (October 2019)

LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS35F-05925.

Contents

About this documentation . . . . . . . . iii

Chapter 1. Meet your computer. . . . . 1

Front . . . . . . . . . . . . . . . . . . . . 1

Rear . . . . . . . . . . . . . . . . . . . . 3

System board . . . . . . . . . . . . . . . . 5

Features and specifications . . . . . . . . . . . 7

Statement on USB transfer rate . . . . . . . . 8

Chapter 2. Get started with your

computer . . . . . . . . . . . . . . . . . 9

Get started with Windows 10 . . . . . . . . . . 9

Windows account . . . . . . . . . . . . . 9

Windows user interface . . . . . . . . . . 10

Connect to networks. . . . . . . . . . . . . 11

Connect to the wired Ethernet . . . . . . . 11

Connect to Wi-Fi networks (for selected

models) . . . . . . . . . . . . . . . . 11

Use Lenovo Vantage . . . . . . . . . . . . . 11

Use multimedia . . . . . . . . . . . . . . . 12

Use audio . . . . . . . . . . . . . . . 12

Chapter 3. Explore your computer . . 13

Manage power . . . . . . . . . . . . . . . 13

Set power button behaviors . . . . . . . . 13

Set the power plan . . . . . . . . . . . . 13

Transfer data . . . . . . . . . . . . . . . . 13

Connect to a Bluetooth-enabled device (for

selected models) . . . . . . . . . . . . 13

Use the optical drive (for selected models) . . 14

Use a media card (for selected models) . . . . 14

Use a smart cable clip . . . . . . . . . . . . 14

Purchase accessories . . . . . . . . . . . . 15

Chapter 4. Secure your computer

and information . . . . . . . . . . . . 17

Lock the computer . . . . . . . . . . . . . 17

Use passwords . . . . . . . . . . . . . 18

Use the fingerprint reader . . . . . . . . . 19

Use software security solutions. . . . . . . . . 19

Use firewalls . . . . . . . . . . . . . . 19

Use antivirus programs . . . . . . . . . . 20

Use Computrace Agent software embedded

in firmware (for selected models) . . . . . . 20

Use BIOS security solutions . . . . . . . . . . 20

Erase all storage drive data . . . . . . . . 20

Use the cover presence switch . . . . . . . 20

Use Smart USB Protection. . . . . . . . . 21

Chapter 5. UEFI BIOS . . . . . . . . . 23

What is UEFI BIOS. . . . . . . . . . . . . . 23

Enter the BIOS menu. . . . . . . . . . . . . 23

Navigate in the BIOS interface . . . . . . . . . 23

Set the system date and time . . . . . . . . . 23

Change the startup sequence . . . . . . . . . 24

Enable or disable the configuration change

detection feature . . . . . . . . . . . . . . 24

Enable or disable the automatic power-on

feature . . . . . . . . . . . . . . . . . . 25

Enable or disable the smart power-on feature . . . 25 Enable or disable the ErP LPS compliance mode . . 25 Enable or disable the ICE thermal alert feature . . . 26

Change the ICE performance mode . . . . . . . 26

Change the fan speed level . . . . . . . . . . 26

Change BIOS settings before installing a new

operating system . . . . . . . . . . . . . . 27

Update UEFI BIOS. . . . . . . . . . . . . . 27

Recover from a BIOS update failure . . . . . . . 27

Clear CMOS . . . . . . . . . . . . . . . . 28

Chapter 6. Troubleshooting,

diagnostics, and recovery . . . . . . . 29

Basic procedure for resolving computer

problems . . . . . . . . . . . . . . . . . 29

Troubleshooting . . . . . . . . . . . . . . 29

Startup problems . . . . . . . . . . . . 30

Audio problems . . . . . . . . . . . . . 31

Network problems . . . . . . . . . . . . 32

Performance problems . . . . . . . . . . 34

Storage drive problems . . . . . . . . . . 35

CD or DVD problems . . . . . . . . . . . 35

Serial connector problems. . . . . . . . . 36

USB device problems . . . . . . . . . . 36

Software problems. . . . . . . . . . . . 37

Diagnostics . . . . . . . . . . . . . . . . 37

Lenovo diagnostic tools. . . . . . . . . . 37

Recovery . . . . . . . . . . . . . . . . . 37

Restore system files and settings to an earlier

point . . . . . . . . . . . . . . . . . 37

Restore your files from a backup . . . . . . 37

Reset your computer . . . . . . . . . . . 37

Use advanced options . . . . . . . . . . 38

Windows automatic recovery. . . . . . . . 38

Create and use a recovery USB device . . . . 38

Update the device driver . . . . . . . . . 39

Chapter 7. CRU replacement . . . . . 41

What are CRUs . . . . . . . . . . . . . . . 41

Replace a CRU . . . . . . . . . . . . . . . 42

Vertical stand . . . . . . . . . . . . . . 42

Dust shield . . . . . . . . . . . . . . . 44

Computer cover . . . . . . . . . . . . . 46

Front bezel . . . . . . . . . . . . . . . 47

Optical drive . . . . . . . . . . . . . . 49

Pivot the drive bay assembly upward and

downward . . . . . . . . . . . . . . . 50

Primary storage drive (a 2.5-inch or 3.5-inch

storage drive) . . . . . . . . . . . . . . 52

2.5-inch secondary storage drive . . . . . . 56

M.2 solid-state drive . . . . . . . . . . . 59

Coin-cell battery. . . . . . . . . . . . . 63

Memory module . . . . . . . . . . . . . 64

PCI Express card . . . . . . . . . . . . 66

Wi-Fi card . . . . . . . . . . . . . . . 68

Power supply assembly . . . . . . . . . . 69

Chapter 8. Help and support . . . . . 73

Self-help resources . . . . . . . . . . . . . 73

Call Lenovo . . . . . . . . . . . . . . . . 74

Before you contact Lenovo . . . . . . . . 74

Lenovo Customer Support Center . . . . . . 74

Purchase additional services. . . . . . . . . . 75

Appendix A. Important safety

information . . . . . . . . . . . . . . . 77

Appendix B. Accessibility and

ergonomic information . . . . . . . . 91

Appendix C. Compliance

information . . . . . . . . . . . . . . . 95

Appendix D. Notices and

trademarks . . . . . . . . . . . . . . . 107

ii M75s-1 User Guide

About this documentation

• Illustrations in this documentation might look different from your product.

• Depending on the model, some optional accessories, features, and software programs might not be

available on your computer.

• Depending on the version of operating systems and programs, some user interface instructions might not

be applicable to your computer.

• Documentation content is subject to change without notice. Lenovo makes constant improvements on the

documentation of your computer, including this User Guide. To get the latest documentation, go to:

https://support.lenovo.com

• Microsoft® makes periodic feature changes to the Windows® operating system through Windows Update.

As a result, some information in this documentation might become outdated. Refer to Microsoft resources for the latest information.

iv M75s-1 User Guide

Chapter 1. Meet your computer

Front

1. Optical drive eject button* Eject the optical drive tray.

2. Optical drive activity indicator* This indicator is on when the optical drive is in use.

Press to turn on the computer.

To turn off the computer, open the Start menu, click Shut down.

3. Power button

4. Storage drive activity indicator This indicator is on when the storage drive is in use.

The indicator in the power button shows the system status of your computer.

• On: The computer is on.

• Off: The computer is off or in hibernation mode.

• Blinking slowly: The computer is in sleep mode.

Power, and then select

Supported cards:

• Secure Digital (SD) card

• Secure Digital eXtended-Capacity (SDXC) USH-1 card

5. SD-card reader slot*

• Secure Digital High-Capacity (SDHC) USH-1 card

Note: Your computer does not support the content protection for recordable media (CPRM) feature for the SD card.

See “Use a media card (for selected models)” on page 14.

6. Microphone connector Connect a microphone.

7. Headphone connector Connect headphones to your computer.

8. USB 3.1 Gen 2 connectors (2)

9. USB 3.1 Gen 1 connectors (2)

10. ThinkCentre

LED

Connect USB-compatible devices, such as a USB keyboard, USB mouse, USB storage device, or USB printer.

This indicator is on when the computer is on.

11. Internal speaker* Enable you to experience quality sound.

* for selected models

M75s-1 User Guide

Rear

1. Audio line-in connector

2. Audio line-out connector

3. Microphone connector

4. Serial connector

5. VGA-out connector

6. DisplayPort

1.2 out

connectors (2)

Receive audio signals from an external audio device, such as a stereo system. To connect an external audio device, connect a cable between the audio line-out connector of the device and the audio line-in connector of the computer.

Send audio signals from the computer to external devices, such as powered stereo speakers, headphones, or multimedia keyboards. To connect a stereo system or other external recording device, connect a cable between the audio line-in connector of the device and the audio line-out connector of the computer.

Note: If your computer has both an audio line-out connector and a headset or headphone connector, always use the headset or headphone connector for earphones, headphones, or a headset. The headphone connector does not support headset microphones.

Connect a microphone to your computer when you want to record sound or interact with the computer using speech recognition software.

Connect an external modem, a serial printer, or other devices that use a serial connector.

Send video signals from the computer to another video device, such as a monitor.

Send audio and video signals from the computer to another audio or video device, such as a high-performance monitor. For more information, see

www.vesa.org/wp-content/uploads/2010/12/DisplayPort-DevCon-Presentation-DP-

1.2-Dec-2010-rev-2b.pdf

Chapter 1. Meet your computer 3

https://

Connect USB-compatible devices, such as a USB keyboard, USB mouse, USB storage device, or USB printer.

7. USB 3.1 connector Gen 1

8. USB 3.1 connector Gen 1

9. USB 2.0 connectors (2)

10. PS/2 keyboard connector Connect a keyboard that uses a Personal System/2 (PS/2) keyboard connector.

11. PS/2 mouse connector

12. PCI-Express card area

13. Smart cable clip slots (2)*

14. Security-lock slot

15. Padlock loop Lock the computer cover through a padlock.

16. Ethernet connector

17. Power cord connector

Note: The USB 3.1 connector Gen 1 supports the smart power on feature. If you connect a Lenovo-recommended USB 1.1 keyboard to this connector, you can power on the computer or wake it up from S4 hibernation mode by pressing Alt+P on the keyboard. Ensure that you use a Lenovo-recommended keyboard that supports the smart power on feature.

Connect USB-compatible devices, such as a USB keyboard, USB mouse, USB storage device, or USB printer.

Connect a mouse, a trackball, or other pointing devices that use a PS/2 mouse connector.

Install PCI-Express cards into this area to improve the operating performance of the computer. Depending on the computer model, the connectors in this area vary.

Lock devices (such as the keyboard and the mouse) to your computer through a smart cable clip.

Lock your computer to a desk, table, or other fixtures through a Kensington-style cable lock.

Connect to a local area network (LAN). When the green indicator is on, the computer is connected to a LAN. When the yellow indicator blinks, data is being transmitted.

Connect the power cord to your computer for power supply.

* for selected models

M75s-1 User Guide

System board

1 4-pin power connector 2 Microprocessor socket

3 Microprocessor fan connector

5 Memory slot (DIMM2) 6 Memory slot (DIMM3)

7 Memory slot (DIMM4)

9 Power button board connector

11 SATA power connectors (2)

13 Coin-cell battery 14 FCH

15 SATA 3.0 connectors (3) 16 Clear CMOS (Complementary Metal Oxide

4 Memory slot (DIMM1)

8 Auxiliary fan connector 2

10 Storage drive activity indicator

12 10-pin power connector

Semiconductor)/Recovery jumper

17 Auxiliary fan connector 1

19 Thermal sensor connector 20 M.2 solid-state drive slot

21 Cover presence switch connector (intrusion switch

18 ThinkCentre LED connector

22 Front USB 2.0 connector (card reader connector)

connector)

23 Front USB 2.0 connector

25 Serial (COM2) connector 26 PCI card slot

27 Buzzer

24 Parallel connector

28 PCI Express x1 card slots (2)

Chapter 1. Meet your computer 5

29 M.2 Wi-Fi card slot

31 System fan connector

30 PCI Express x16 graphics card slot

6 M75s-1 User Guide

Features and specifications

• Width: 92.5 mm (3.6 inches)

Dimensions

Weight (without the package) Maximum configuration as shipped: 6.0 kg (13.2 lb)

Hardware configuration

• Height: 343.5 mm (13.5 inches)

• Depth: 290.5 mm (11.4 inches)

1. Right-click the Start button to open the Start context menu.

2. Click Device Manager. Type the administrator password or provide confirmation if prompted.

Power supply

Electrical input

Adaptability for power supply

Microprocessor

Memory

Storage device

• 180-watt automatic voltage-sensing power supply

• 210-watt automatic voltage-sensing power supply

• Input voltage: From 100 V ac to 240 V ac

• Input frequency: 50/60 Hz

• Mainland China: 220 V±22 V, 50 Hz±1 Hz

• Adaptive voltage positioning: 90 V to 264 V, 50/60 Hz

• With voltage selection switch: 90 V to 264 V, 50 Hz±1 Hz

To view the microprocessor information of your computer, right-click the Start button and then click System.

Up to four double data rate 4 (DDR4) unbuffered dual inline memory modules (UDIMMs)

• 2.5-inch form factor, 7-mm (0.28-inch) height hard disk drive*

• 3.5-inch form factor, 7-mm (0.28-inch) height hard disk drive*

• M.2 solid-state drive* To know the storage drive capacity:

1. Right-click the Start button to open the Start context menu.

2. Click Disk Management.

Note: The storage drive capacity indicated by the system is less than the nominal capacity.

Audio features

• The integrated audio card supports the following:

– Audio line-in connector – Audio line-out connector – Headphone connector – Internal speaker* – Microphone connector

Chapter 1. Meet your computer 7

• Card reader*

• Memory slots

Expansion

Network features

• Optical drive

• PCI Express x1 card slot

• PCI Express x16 graphics card slot

• Storage drive bay

• Bluetooth*

• Ethernet LAN

• Wireless LAN*

* for selected models

Statement on USB transfer rate

Depending on many factors such as the processing capability of the host and peripheral devices, file attributes, and other factors related to system configuration and operating environments, the actual transfer rate using the various USB connectors on this device will vary and will be slower than the data rate listed below for each corresponding device.

USB device Data rate (Gbit/s)

3.1 Gen 1

3.1 Gen 2

3.2 20

8 M75s-1 User Guide

Chapter 2. Get started with your computer

Get started with Windows 10

Learn the basics of Windows 10 and start working with it right away. For more information about Windows 10, see the Windows help information.

Windows account

A user account is required to use the Windows operating system. It can either be a Windows user account or a Microsoft account.

Windows user account

When you start Windows for the first time, you are prompted to create a Windows user account. This first account you created is of the “Administrator” type. With an Administrator account, you can create additional user accounts or change account types by doing the following:

1. Open the Start menu and select Settings ➙ Accounts ➙ Family & other users.

2. Follow the on-screen instructions.

Microsoft account

You can also log in to the Windows operating system with a Microsoft account.

To create a Microsoft account, go to the Microsoft sign-up page at screen instructions.

With a Microsoft account, you can:

• Enjoy one-time signing in if you are using other Microsoft services, such as OneDrive, Skype, and Outlook. com.

• Sync personalized settings across other Windows-based devices.

https://signup.live.com and follow the on-

Windows user interface

1. Account

2. Documents

3. Pictures

4. Settings

5. Power

6. Start button

7. Windows Search

8. Task View

9. Windows notification area

10. Battery status icon

11. Network icon

12. Action center

Change account settings, lock the computer, or sign out from the current account.

Open the Documents folder, a default folder to save your received files.

Open the Pictures folder, a default folder to save your received pictures.

Launch Settings.

Shut down, restart, or put the computer into sleep mode.

Open the Start menu.

Type what you are looking for in the search box and get search results from your computer and the Web.

Display all opened apps and switch among them.

Display notifications and status of some features.

Display power status and change battery or power settings. When your computer is not connected to ac power, the icon changes to

Connect to an available wireless network and display the network status. When connected to a wired network, the icon changes to

Display the latest notifications from apps and provide quick access to some features.

Open the Start menu

• Click the Start button.

• Press the Windows logo key on the keyboard.

Open the Start context menu Right-click the Start button.

M75s-1 User Guide

Access Control Panel

• Open the Start menu

• Use Windows Search.

and click Windows System ➙ Control Panel.

Launch

• Open the Start menu

• Use Windows Search.

an app

and select the app you want to launch.

Connect to networks

Your computer helps you connect to the world through a wired or wireless network.

Connect to the wired Ethernet

Connect your computer to a local network through the Ethernet connector on your computer with an Ethernet cable.

Connect to Wi-Fi networks (for selected models)

1. Click the network icon in the Windows notification area. A list of available wireless networks is displayed.

2. Select a network available for connection. Provide required information, if needed.

Use Lenovo Vantage

The preinstalled Lenovo Vantage is a customized one-stop solution to help you maintain your computer with automated updates and fixes, configure hardware settings, and get personalized support.

Access Lenovo Vantage

Open the Start menu and click Lenovo Vantage. You also can type Lenovo Vantage in the search box.

To download the latest version of Lenovo Vantage, go to Microsoft Store and search by the app name.

Key features

Lenovo Vantage enables you to:

• Know the device status easily and customize device settings.

• Download and install UEFI BIOS, firmware and driver updates to keep your computer up-to-date.

• Monitor your computer health, and secure your computer against outside threats.

• Look up warranty status (online).

• Access User

Notes:

• The available features vary depending on the computer model.

• Lenovo Vantage makes periodic updates of the features to keep improving your experience with your computer. The description of features might be different from that on your actual user interface.

Guide and helpful articles.

Chapter 2. Get started with your computer 11

Use multimedia

Use your computer for business or entertainment with the devices (such as a camera, a monitor, or speakers).

Use audio

To enhance the audio experience, connect speakers, headphones, or a headset to the audio connector.

Adjust the volume

1. Click the volume icon in the Windows notification area on the taskbar.

2. Follow the on-screen instructions to adjust the volume. Click the speaker icon to mute the audio.

Change the sound settings

1. Go to Control Panel and view by category.

2. Click Hardware and Sound ➙ Sound.

3. Change the settings as you prefer.

M75s-1 User Guide

Chapter 3. Explore your computer

Manage power

Use the information in this section to achieve the best balance between performance and power efficiency.

Set power button behaviors

You can define what the power button does according to your preference. For example, by pressing the power button, you can turn off the computer or put the computer to sleep or hibernation mode.

To change what the power button does:

1. Go to Control Panel and view by large icons or small icons.

2. Click Power Options ➙ Choose what the power buttons do.

3. Change the settings as you prefer.

Set the power plan

For ENERGY STAR® compliant computers, the following power plan takes effect when your computers have been idle for a specified duration:

Table 1. Default power plan (when plugged into ac power)

• Turn off the display: After 10 minutes

• Put the computer to sleep: After 25 minutes

To awaken the computer from Sleep mode, press any key on your keyboard.

To reset the power plan to achieve the best balance between performance and power saving:

1. Go to Control Panel and view by large icons or small icons.

2. Click Power Options, and then choose or customize a power plan of your preference.

Transfer data

Quickly share your files using the built-in Bluetooth technology among devices with the same features. You also can install a disc or media card to transfer data.

Connect to a Bluetooth-enabled device (for selected models)

You can connect all types of Bluetooth-enabled devices to your computer, such as a keyboard, a mouse, a smartphone, or speakers. To ensure that the connection is successful, place the devices 10 meters (33 feet), at most, from the computer.

1. Turn on Bluetooth on the computer. a. Open the Start menu, and then click Settings ➙ Devices ➙ Bluetooth & other devices. b. Turn on the Bluetooth switch.

2. Click Add Bluetooth or other device ➙ Bluetooth.

3. Select a Bluetooth device, and then follow the on-screen instructions.

Your Bluetooth device and computer will automatically connect the next time if the two devices are in range of each other with Bluetooth turned on. You can use Bluetooth for data transfer or remote control and communication.

Use the optical drive (for selected models)

If your computer has an optical drive, read the following information.

Know the type of your optical drive

1. Right-click the Start button to open the Start context menu.

2. Click Device Manager. Type the administrator password or provide confirmation if prompted.

Install or remove a disc

1. With the computer on, press the eject button on the optical drive. The tray slides out of the drive.

2. Insert a disc into the tray or remove a disc from the tray, and then push the tray in to close the tray.

Note: If the tray does not slide out of the drive when you press the eject button, turn off the computer. Then, insert a straightened paper clip into the emergency-eject hole adjacent to the eject button. Use the emergency eject only in an emergency.

Record a disc

1. Insert a recordable disc into the optical drive that supports recording.

2. Do one of the following:

• Open the Start menu, and then click Settings ➙ Devices ➙ AutoPlay. Select or turn on Use AutoPlay for all media and devices.

• Open Windows Media Player.

• Double-click the ISO file.

3. Follow the on-screen instructions.

Use a media card (for selected models)

If your computer has a SD-card slot, read the following information.

Install a media card

1. Locate the SD-card slot.

2. Ensure that the metal contacts on the card are facing the ones in the SD-card slot. Insert the card firmly into the SD-card slot until it is secured in place.

Remove a media card Attention: Before removing a media card, eject the card from the Windows operating system first.

Otherwise, data on the card might get corrupted or lost.

1. Click the triangular icon in the Windows notification area to show hidden icons. Then, right-click the Safely Remove Hardware and Eject Media icon.

2. Select the corresponding item to eject the card from the Windows operating system.

3. Press the card and remove it from your computer. Store the card safely for future use.

Use a smart cable clip

Note: You can purchase a smart cable clip from Lenovo.

M75s-1 User Guide

Lock devices (such as the keyboard and the mouse) to your computer through a smart cable clip.

1. Insert the clip

1 into the cable-lock slot 4 .

2. Pull the cables you want to lock through the dents in the smart cable clip.

3. Press the clip

2 into the cable-lock slot 3 until it snaps into position.

Purchase accessories

Lenovo has a number of hardware accessories and upgrades to help expand the capabilities of your computer. Options include memory modules, storage devices, network cards, power adapters, keyboards, mice, and more.

To shop at Lenovo, go to

https://www.lenovo.com/accessories.

Chapter 3. Explore your computer 15

16 M75s-1 User Guide

Chapter 4. Secure your computer and information

Lock the computer

Note: You are responsible for evaluating, selecting, and implementing the locking device and security

feature. Lenovo makes no comments, judgments, or warranties about the function, quality, or performance of the locking device and security feature. You can purchase computer locks from Lenovo.

Padlock

Locking the computer cover through a padlock prevents unauthorized access to the inside of your computer.

Kensington-style cable lock

Lock your computer to a desk, table, or other fixtures through a Kensington-style cable lock.

This section provides secure ways to log in to your computer with a password, a fingerprint, or your face.

Use passwords

Password types

You can set the following passwords in UEFI (Unified Extensible Firmware Interface) BIOS (Basic Input/ Output System) to prevent unauthorized access to your computer. However, you are not prompted to enter any UEFI BIOS password when your computer resumes from sleep mode.

• Power-on password When a power-on password is set, you are prompted to enter a valid password each time the computer is

turned on. The computer cannot be used until the valid password is entered.

• Supervisor password Setting a supervisor password deters unauthorized users from changing configuration settings. If you are

responsible for maintaining the configuration settings of several computers, you might want to set a supervisor password.

When a supervisor password is set, you are prompted to enter a valid password each time you try to enter the BIOS menu.

If both the power-on password and supervisor password are set, you can enter either password. However, you must use your supervisor password to change any configuration settings.

• Hard disk password Setting a hard disk password prevents unauthorized access to the data on the storage drive. When a hard

disk password is set, you are prompted to enter a valid password each time you try to access the storage drive.

Note: After you set a hard disk password, your data on the storage drive is protected even if the storage drive is removed from one computer and installed in another.

• System management password (for selected models) You can enable the system management password to have the same authority as the supervisor

password to control security related features. To customize the authority of the system management password through the UEFI BIOS menu:

1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.

2. Select Security ➙ System Management Password Access Control.

3. Follow the on-screen instructions.

If you have set both the supervisor password and the system management password, the supervisor password overrides the system management password.

Set, change, and remove a password

Before you start, print these instructions.

1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.

2. Select Security.

3. Depending on the password type, select Set Supervisor Password, Set Power-On Password, Set System Management Password, or Hard Disk Password and press Enter.

4. Follow the on-screen instructions to set, change, or remove a password.

5. Press F10 or Fn+F10 to save the changes and exit.

You should record your passwords and store them in a safe place. If you forget the passwords, see “Clear CMOS” on page 28 to remove them by yourself. You can also contact a Lenovo-authorized service provider to have the passwords removed.

M75s-1 User Guide

Notes:

• If the supervisor password is forgotten, it might not be removed by clearing CMOS depending on your BIOS settings.

• If the hard disk password is forgotten, Lenovo cannot remove the password or recover data from the storage drive.

Use the fingerprint reader

If you use a mouse with a fingerprint reader on it, fingerprint authentication can replace your passwords and enables you to log in to your computer simply and securely.

Enroll your fingerprints

Open the Start menu and then click Settings ➙ Accounts ➙ Sign-in options. Then, follow the on-screen instructions to finish the enrollment.

During the enrollment, the fingerprints are associated with the Windows password automatically. It is recommended that you enroll more than one fingerprint in case of any injuries to your fingers.

If the fingerprint reader indicator blinks in amber, the authentication is not successful.

Maintain the fingerprint reader

To ensure that the fingerprint reader works correctly, do not:

• Scratch the surface of the reader with anything hard.

• Use or touch the reader with a wet, dirty, wrinkled, or injured finger.

Use software security solutions

This section provides software solutions to secure your computer and information.

Use firewalls

A firewall can be hardware, software, or a combination of both depending on the level of security required. Firewalls work on a set of rules to determine which inbound and outbound connections are authorized. If the computer is preinstalled with a firewall program, it helps protect against computer Internet security threats, unauthorized access, intrusions, and Internet attacks. It also protects your privacy. For more information about how to use the firewall program, refer to the help system of your firewall program.

To use firewalls:

1. Go to Control Panel and view by large icons or small icons.

2. Click Windows Defender Firewall, and then follow the on-screen instructions.

Chapter 4. Secure your computer and information 19

Use antivirus programs

The computer is preinstalled with an antivirus program to help you guard against, detect, and eliminate viruses.

Lenovo provides a full version of antivirus software on the computer with a free 30-day subscription. After 30 days, you must renew the license to continue receiving the antivirus software updates.

Note: Virus definition files must be kept up-to-date to guard against new viruses.

For more information about how to use your antivirus software, refer to the help system of your antivirus software.

Use Computrace Agent software embedded in firmware (for selected models)

The Computrace Agent software is an IT asset management and computer theft recovery solution. The software detects if changes have been made on the computer, such as hardware, software, or the computer call-in location. You might have to purchase a subscription to activate the Computrace Agent software.

Use BIOS security solutions

This section provides BIOS solutions to secure your computer and information.

Erase all storage drive data

It is recommended that you erase all storage drive data before recycling a storage drive or the computer.

To erase all storage drive data:

1. Set a hard disk password for the storage drive you will recycle. See “Use passwords” on page 18.

2. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.

3. Select Security ➙ Hard Disk Password ➙ Security Erase HDD Data and press Enter.

4. Select the storage drive you will recycle and press Enter.

5. A message is displayed, prompting you to confirm the operation. Select Yes and press Enter. The erasing process begins.

Note: During the erasing process, the power button and the keyboard are disabled.

6. After the erasing process is completed, a message is displayed, prompting you to reset the system. Select Continue.

Note: Depending on the storage drive capacity, the erasing process will take half an hour to three hours.

7. After the resetting process is completed, one of the following will happen:

• If the data on the system storage drive is erased, you will be prompted that no operating system is

available.

• If the data on the non-system storage drive is erased, the computer restarts automatically.

Use the cover presence switch

The cover presence switch prevents the computer from logging in to the operating system when the computer cover is not properly installed or closed.

To enable the cover presence switch connector on the system board:

1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.

M75s-1 User Guide

2. Select Security ➙ Cover Tamper Detected and press Enter.

3. Select Enabled and press Enter.

4. Press F10 or Fn+F10 to save the changes and exit.

When the cover presence switch connector on the system board is enabled, if the cover presence switch detects that the computer cover is not correctly installed or closed, an error message will be displayed when you turn on the computer. To bypass the error message and log in to the operating system:

1. Properly install or close the computer cover.

2. Enter the BIOS menu, save and then exit.

Use Smart USB Protection

The Smart USB Protection function is a security function that helps prevent data from being copied from the computer to USB storage devices connected to the computer. You can set the Smart USB Protection function to one of the following modes:

• Disabled (default setting): You can use the USB storage devices without limitation.

• Read Only: You cannot copy data from the computer to the USB storage devices. However, you can access or modify data on the USB storage devices.

• No Access: You cannot access the USB storage devices from the computer.

To configure the Smart USB Protection function:

1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.

2. Select Security ➙ Smart USB Protection and press Enter.

3. Select the desired setting and press Enter.

4. Press F10 or Fn+F10 to save the changes and exit.

Chapter 4. Secure your computer and information 21

22 M75s-1 User Guide

Chapter 5. UEFI BIOS

This chapter provides information about configuring and updating UEFI BIOS, and clearing CMOS.

What is UEFI BIOS

Note: The operating system settings might override any similar settings in UEFI BIOS.

UEFI BIOS is the first program that the computer runs when the computer is turned on. UEFI BIOS initializes the hardware components and loads the operating system and other programs. Your computer comes with a setup program with which you can change UEFI BIOS settings.

Enter the BIOS menu

Restart the computer. When the logo screen is displayed, press F1 or Fn+F1 to enter the BIOS menu.

Note: If you have set BIOS passwords, enter the correct passwords when prompted. You also can press Enter to skip the password prompt and enter the BIOS menu. However, you cannot change the system configurations that are protected by passwords.

Navigate in the BIOS interface

Attention: The default configurations are already optimized for you in boldface. Improper change of the

configurations might cause unexpected results.

Depending on your keyboard, you can navigate in the BIOS interface by pressing the following keys, or combinations of Fn and the following keys:

F1 or Fn+F1

Esc or Fn+Esc Exit the submenu and return to the parent menu.

↑↓ or Fn+↑↓ Locate an item.

← → or Fn+← → Select a tab.

+/– or Fn++/– Change to a higher or lower value.

Enter Enter the selected tab or submenu.

F9 or Fn+F9 Restore to the default settings.

F10 or Fn+F10 Save your configuration and exit.

Display the General Help screen.

Set the system date and time

1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.

2. Select Main ➙ System Time & Date and press Enter.

3. Set the system date and time as desired.

4. Press F10 or Fn+F10 to save the changes and exit.

Change the startup sequence

If the computer does not start up from a device as expected, you can change the startup device sequence permanently or select a temporary startup device.

Change the startup device sequence permanently

1. Depending on the type of the storage device, do one of the following:

• If the storage device is internal, go to step 2.

• If the storage device is a disc, ensure that the computer is on or turn on the computer. Then, insert the disc into the optical drive.

• If the storage device is an external device other than a disc, connect the storage device to the computer.

2. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.

3. Select Startup, and then follow the on-screen instructions to change the startup sequence.

4. Press F10 or Fn+F10 to save the changes and exit.

Select a temporary startup device Note: Not all discs and storage drives are bootable.

1. Depending on the type of the storage device, do one of the following:

• If the storage device is internal, go to step 2.

• If the storage device is a disc, ensure that the computer is on or turn on the computer. Then, insert the disc into the optical drive.

• If the storage device is an external device other than a disc, connect the storage device to the computer.

2. Restart the computer. When the logo screen is displayed, press F12 or Fn+F12.

3. Select the storage device as desired and press Enter.

If you want to change the startup device sequence permanently, select Enter Setup on Startup Device Menu and press Enter to enter the BIOS menu.

Enable or disable the configuration change detection feature

If you enable configuration change detection, when the POST detects configuration changes of some hardware devices (such as storage drives or memory modules), an error message will be displayed when you turn on the computer.

To enable or disable the configuration change detection feature:

1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.

2. Select Security ➙ Configuration Change Detection and press Enter.

3. Enable or disable the feature as desired.

4. Press F10 or Fn+F10 to save the changes and exit.

To bypass the error message and log in to the operating system, press F2 or Fn+F2. To clear the error message, enter the BIOS menu, save and then exit.

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