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Lenovo ThinkPad Yoga 15 (English) User Guide - ThinkPad Yoga 15 - Page 90

Flash BIOS Updating

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Table 4. Security menu items (continued) Menu item Submenu item Selection Clear Security Chip Enter Physical Presence for Provisioning • Disabled • Enabled Physical Presence for Clear • Disabled • Enabled UEFI BIOS Update Option Flash BIOS Updating by • Disabled End-Users • Enabled Secure RollBack Prevention • Disabled • Enabled Memory Protection Execution Prevention • Disabled • Enabled Comments CMOS Reporting and NVRAM Reporting are always enabled to enhance system security. Note: This item is available when Security Chip is set as Active. This option is used to clear encryption keys. It will not be possible to access already-encrypted data after these keys are cleared. Note: This item is available when Security Chip is set as Active. This option enables or disables the confirmation message when you change the settings of the security chip. This option enables or disables the confirmation message when you clear the security chip. If you select Enabled, all users can update the UEFI BIOS. If you select Disabled, only the person who knows the supervisor password can update the UEFI BIOS. If you select Disabled, you can flash to an earlier version of the UEFI BIOS. If you select Enabled, you cannot flash to an earlier version of the UEFI BIOS. 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. Some computer viruses and worms cause memory buffers to overflow. By selecting Enabled you can protect your computer against attacks by such viruses and worms. If you find that an application program does not run correctly after choosing Enabled, select Disabled and reset the setting. 74 User Guide

Section	Page
Read this first	7
Important safety information	8
Conditions that require immediate action	9
Safety guidelines	9
Chapter 1. Product overview	17
Locating computer controls, connectors, and indicators	17
Front view for models with a 2D camera	17
Front view for models with a 3D camera	19
Right-side view	20
Left-side view	22
Bottom view	24
Rear view	24
Status indicators	25
Locating important product information	26
Machine type and model label	26
FCC ID and IC Certification information	26
Certificate of Authenticity label	28
Genuine Microsoft label	28
Features	29
Specifications	30
Operating environment	31
Lenovo programs	31
Accessing Lenovo programs on the Windows 7 operating system	32
Accessing Lenovo programs on the Windows 8.1 operating system	33
An introduction to Lenovo programs	33
Chapter 2. Using your computer	37
Registering your computer	37
Frequently asked questions	37
Using the special buttons	39
Using the multi-touch screen	39
Operating modes	42
Enabling the operating modes	42
Rotating the computer display	43
Notebook mode	43
Stand mode	44
Tablet mode	45
Tent mode	47
Using the keyboard	48
Special keys	50
ThinkPad pointing device	52
TrackPoint pointing device	53
Trackpad	54
Trackpad touch gestures	55
Customizing the ThinkPad pointing device	56
Replacing the cap of pointing stick	56
Power management	57
Checking the battery status	57
Using the ac power	58
Charging the battery	58
Maximizing the battery life	59
Managing the battery power	59
Power-saving modes	59
Connecting to the network	60
Ethernet connections	60
Wireless connections	60
Using an external display	64
Connecting an external display	64
Choosing a display mode	65
Changing display settings	65
Using audio features	65
Using the camera	66
Using a flash media card	67
Chapter 3. Enhancing your computer	69
Finding ThinkPad options	69
ThinkPad OneLink Dock	69
ThinkPad OneLink Pro Dock	70
Chapter 4. Security	73
Using passwords	73
Typing passwords	73
Power-on password	73
Supervisor password	74
Hard disk passwords	75
Hard disk security	77
Setting the security chip	78
Notice on deleting data from your storage drive	79
Using firewalls	80
Protecting data against viruses	80
Chapter 5. Advanced configuration	81
Installing a new operating system	81
Installing the Windows 7 operating system	81
Installing the Windows 8.1 operating system	82
Installing device drivers	83
Using the ThinkPad Setup program	83
Main menu	84
Config menu	84
Date and Time menu	88
Security menu	88
Startup menu	93
Restart menu	94
Updating the UEFI BIOS	95
Using system management	95
Chapter 6. Preventing problems	97
General tips for preventing problems	97
Making sure device drivers are current	98
Taking care of your computer	99
Cleaning the cover of your computer	100
Chapter 7. Troubleshooting computer problems	103
Diagnosing problems	103
Troubleshooting	103
Computer stops responding	103
Spills on the keyboard	104
Error messages	104
Errors without messages	106
Beep errors	107
Memory module problems	107
Networking problems	108
Problems with the keyboard and other pointing devices	109
Problems with the display and multimedia devices	110
Battery and power problems	114
Problems with drives and other storage devices	117
A software problem	117
Problems with ports and connectors	118
Chapter 8. Recovery overview	119
Recovery overview for the Windows 7 operating system	119
Creating and using a recovery media	119
Performing backup and recovery operations	120
Using the Rescue and Recovery workspace	121
Creating and using a rescue medium	122
Reinstalling preinstalled applications and device drivers	123
Solving recovery problems	124
Recovery overview for the Windows 8.1 operating system	124
Refreshing your computer	124
Resetting your computer to the factory default settings	125
Using the advanced startup options	125
Recovering your operating system if Windows 8.1 fails to start	125
Creating and using recovery media	125
Chapter 9. Replacing devices	127
Static electricity prevention	127
Disabling the built-in battery	127
Installing or replacing the SIM card	128
Replacing the keyboard	129
Replacing the base cover assembly	133
Replacing the memory module	135
Replacing the internal storage drive	137
Replacing the wireless WAN card	139
Replacing the coin-cell battery	141
Chapter 10. Getting support	143
Before you contact Lenovo	143
Getting help and service	143
Using diagnostic programs	144
Lenovo Support Web site	144
Calling Lenovo	144
Purchasing additional services	145
Chapter 11. You and your computer	147
Accessibility and comfort	147
Ergonomic information	147
Comfort	148
Accessibility information	148
Traveling with your computer	152
Travel tips	152
Travel accessories	153
Appendix A. Regulatory information	155
Wireless related information	155
Location of the UltraConnect wireless antennas	156
Locating wireless regulatory notices	157
Certification related information	157
Export classification notice	157
Electronic emission notices	158
Federal Communications Commission Declaration of Conformity	158
Industry Canada Class B emission compliance statement	158
European Union - Compliance to the Electromagnetic Compatibility Directive	158
German Class B compliance statement	159
Class 1 laser compliance statement	159
Korea Class B compliance statement	160
Japan VCCI Class B compliance statement	160
Japan compliance statement for products which connect to the power mains with rated current less than or equal to 20 A per phase	160
Lenovo product service information for Taiwan	160
Eurasian compliance mark	160
Brazil regulatory notice	160
Mexico regulatory notice	160
Appendix B. WEEE and recycling statements	161
Important WEEE information	161
Japan recycling statements	161
Recycling information for Brazil	162
Battery recycling information for the European Union	162
Battery recycling information for Taiwan	163
Battery recycling information for the United States and Canada	163
Recycling information for China	163
Appendix C. Restriction of Hazardous Substances Directive (RoHS)	165
European Union RoHS	165
China RoHS	166
Turkish RoHS	167
Ukraine RoHS	167
India RoHS	167
Appendix D. ENERGY STAR model information	169
Appendix E. Notices	171

Match case Limit results 1 per page

Table 4. Security menu items (continued)

Menuitem

Submenuitem

Selection

Comments

CMOSReporting

and

NVRAM

Reporting

are always enabled to

enhance system security.

Note:

This item is available when

SecurityChip

is set as

Active

Clear Security Chip

Enter

This option is used to clear

encryption keys. It will

not be possible to access

already-encrypted data after

these keys are cleared.

Note:

This item is available when

SecurityChip

is set as

Active

Physical Presence for

Provisioning

•

Disabled

• Enabled

This option enables or disables the

conﬁrmation message when you

change the settings of the security

chip.

Physical Presence for

Clear

• Disabled

•

Enabled

This option enables or disables the

conﬁrmation message when you

clear the security chip.

Flash BIOS Updating by

End-Users

• Disabled

•

Enabled

If you select

Enabled

, all users can

update the UEFI BIOS. If you select

Disabled

, only the person who

knows the supervisor password can

update the UEFI BIOS.

UEFIBIOSUpdateOption

Secure RollBack

Prevention

•

Disabled

• Enabled

If you select

Disabled

, you can ﬂash

to an earlier version of the UEFI

BIOS.

If you select

Enabled

, you cannot

ﬂash to an earlier version of the UEFI

BIOS.

Note:

This item is set as

Disabled

by default when the

OSOptimized

Defaults

on the

Restart

menu is

set as

Disabled

. This item is set

Enabled

by default when the

OSOptimizedDefaults

is set as

Enabled

MemoryProtection

Execution Prevention

• Disabled

•

Enabled

Some computer viruses and worms

cause memory buffers to overﬂow.

By selecting

Enabled

you can

protect your computer against

attacks by such viruses and worms.

If you ﬁnd that an application

program does not run correctly after

choosing

Enabled

, select

Disabled

and reset the setting.

User Guide