Operation Manual
Table Of Contents
- Important safety information
- Read this first
- Important information about using your computer
- Conditions that require immediate action
- Service and upgrades
- Power cords and power adapters
- Extension cords and related devices
- Plugs and outlets
- Power supply statement
- External devices
- General battery notice
- Notice for built-in rechargeable battery
- Notice for non-rechargeable coin-cell battery
- Heat and product ventilation
- Electrical current safety information
- Liquid crystal display (LCD) notice
- Using headphones or earphones
- Choking hazard notice
- Plastic bag notice
- Glass parts notice
- Chapter 1. Product overview
- Chapter 2. Using your computer
- Registering your computer
- Frequently asked questions
- Operating modes
- Using the multi-touch screen
- Using the special keys
- Using the ThinkPad pointing device
- Power management
- Cabled Ethernet connections
- Wireless connections
- Using audio features
- Using the cameras
- Using a media card
- Using an external display
- Traveling with your computer
- Chapter 3. Enhancing your computer
- Chapter 4. Accessibility, ergonomic, and maintenance information
- Chapter 5. Security
- Chapter 6. Advanced configuration
- Chapter 7. Troubleshooting computer problems
- General tips for preventing problems
- Diagnosing problems with Lenovo Companion
- Troubleshooting
- Computer stops responding
- Spills on the keyboard
- Error messages
- Beep errors
- Memory module problems
- Ethernet problems
- Wireless-LAN problem
- Bluetooth problem
- ThinkPad pointing device problems
- Keyboard problems
- Computer screen problems
- External monitor problems
- Audio problems
- Fingerprint reader problems
- Battery problems
- ac power adapter problem
- Power problems
- Power button problem
- Boot problems
- Sleep and hibernation problems
- Solid-state drive problem
- ThinkPad Pen Pro problem
- Software problem
- USB problem
- Chapter 8. Recovery information
- Chapter 9. Replacing devices
- Chapter 10. Getting support
- Appendix A. Supplemental information about the Ubuntu operating system
- Appendix B. Regulatory information
- Certification-related information
- Wireless-related information
- TCO certification
- Export classification notice
- Electronic emission notices
- Federal Communications Commission Declaration of Conformity
- Industry Canada Class B emission compliance statement
- European Union conformity
- German Class B compliance statement
- Japan VCCI Class B compliance statement
- Japan compliance statement for products which connect to the power mains with rated current less than or equal to 20 A per phase
- Japan notice for ac power cord
- Lenovo product service information for Taiwan
- Eurasian compliance mark
- Brazil audio notice
- Appendix C. WEEE and recycling statements
- Appendix D. Restriction of Hazardous Substances (RoHS) Directive
- Appendix E. ENERGY STAR model information
- Appendix F. Notices
- Appendix G. Trademarks
Values: Enabled, Disabled
Descriptions: Enable or disable the security chip.
• Security Reporting Options
– SMBIOS Reporting
Values: Enabled, Disabled
Descriptions: When enabled, changes to corresponding UEFI BIOS data are logged in a location,
(PCR1, defined in the TCG standards), which other authorized programs can monitor, read and analyze.
• Clear Security Chip
Descriptions: Use this option to clear the encryption key. It will not be possible to access already-
encrypted data after these keys are cleared.
• Intel (R) TXT Feature
Values: Disabled, Enabled
Descriptions: Enable or disable the Intel Trusted Execution Technology.
• Physical Presence for Clear
Values: Disabled, Enabled
Descriptions: If this option is enabled, a confirmation message is displayed when you clear the security
chip.
UEFI BIOS Update Option
• Flash BIOS Updating by End-Users
Values: Disabled, Enabled
Descriptions: When this option is enabled, all users can update the UEFI BIOS. If you disable this option,
only the person who knows the supervisor password can update the UEFI BIOS.
• Secure RollBack Prevention
Values: Disabled, Enabled
Descriptions: When this option is disabled, you can flash the UEFI BIOS to earlier version.
• Windows UEFI Firmware Update
Values: Enabled, Disabled
Descriptions: Enable or disable the Windows UEFI Firmware Update feature. If you select Disabled, BIOS
will skip Windows UEFI Firmware Update and you can flash the UEFI BIOS to an earlier version.
Memory Protection
• Execution Prevention
Values: Disabled, Enabled
Descriptions: Some
computer viruses and worms cause memory buffers to overflow. By enabling this
option, you can protect your computer against attacks from such viruses and worms. If the option is
enabled but you find that a program does not run properly, disable this option first and then reset the
settings.
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L380, L380 Yoga, S2 3rd Gen, and S2 Yoga 3rd Gen User Guide
Note: This item is set as Disabled by default when the OS Optimized Defaults on the Restart menu is
set as Disabled
. This item is set as Enabled by default when the OS Optimized Defaults is set as
Enabled.
Virtualization
• Intel
Virtualization Technology
Values: Disabled, Enabled
Descriptions: If this option is enabled, a Virtual Machine Monitor (VMM) can utilize the additional hardware
capabilities provided by Intel Virtualization Technology. This setting should be set to disabled to prevent
security risks if operating system does not support a VMM.