Menu item Value Comments Boot, Network Boot, Yes | Lenovo 23427YU

•Use F5 or – to move the device down to a lower priority.

•Use the combination of Shift and ! to exclude or include a device.

3.Press F10 to save the changes and restart the system.

To change the startup sequence temporarily so that the system starts up from a different drive, do the following:

1.Turn off the computer.

2.Turn on the computer; then, while the ThinkPad logo is displayed, press F12.

3.Select the device you want to start first.

Note: The Boot menu will be displayed when the system cannot boot from any devices or the operating system cannot be found.

The following table lists the Startup menu items.

Notes:

•Default values are in boldface.

•In each submenu, press the Enter key to show selectable options and select a desired option by using cursor key.

•Some items are displayed on the menu only if the computer supports the corresponding features.

Table 7. Startup menu items

Menu item	Value			Comments

Boot				See “Changing the startup sequence” on
				page 126.

Network Boot				Select the boot device when the system
				wakes from LAN. If Wake on LAN is
				enabled, the network administrator can
				turn on all of the computers in a LAN
				remotely by use of network management
				software.

UEFI/Legacy Boot	•	Both		Select system boot capability.
		–	UEFI/Legacy Boot Priority	• Both: The system will boot following
		–	UEFI First	the UEFI/Legacy Boot Priority
		–	UEFI First	setting.
		–	Legacy First	setting.
		–	Legacy First	• UEFI Only: The system will boot from
		– CSM Support (for UEFI Only)		• UEFI Only: The system will boot from
		– CSM Support (for UEFI Only)		the UEFI enabled operating system.
		–	Yes	• Legacy Only: The system will boot
		–	No	from any operating system other than
	•	UEFI Only		the UEFI enabled one.
	•	UEFI Only
	•	Legacy Only		Note: If you select UEFI Only, the
				system cannot boot from the bootable
				devices that do not have the UEFI
				enabled operating system.

Chapter 8. Advanced configuration 127

Image 143

Lenovo 23427YU Menu item Value Comments Boot, Network Boot, UEFI/Legacy Boot Both, UEFI/Legacy Boot Priority, Legacy First

Contents

User Guide Third Edition November Copyright Lenovo Safety, Warranty, and Setup Guide Regulatory Notice Contents Replacing devices Iii Appendix B. Weee and recycling statements Iv User Guide Protect the cables from being damaged Read this firstProtect yourself from the heat that your computer generates Prevent your computer from getting wet Carry your computer carefully Important safety informationProtect your computer and data when moving it Handle your computer gently Vii Safety guidelinesService and upgrades Conditions that require immediate action Power cords and power adapters Plugs and outlets Power supply statementExtension cords and related devices External devices General battery noticeRechargeable battery notice Heat and product ventilation Lithium coin cell battery notice Electrical current safety information Xiii Using headphones or earphonesLaser compliance statement Liquid crystal display LCD notice Additional safety information Front view Locating computer controls, connectors, and indicatorsProduct overview Fingerprint reader Status indicatorsPower button Built-in stereo speaker right Built-in stereo speaker left Built-in microphone left Built-in microphone right Volume control buttonsFn key Black button Right-side view Fan louvers left Monitor connectorLeft-side view Smart card slot Bottom view Hard disk drive or solid state drive Memory-upgrade slotAlways On USB connector Rear view Fan louvers rear Status indicatorsEthernet connector Power jack Power status indicators System-status indicators Machine type and model label Sleep status indicatorBattery status indicator Locating important product information FCC ID and IC Certification number label Certificate of Authenticity label Features Product overview Operating environment Specifications Program Icon name Accessing Lenovo programs on the Windows 7 operating systemLenovo programs Program Control Panel section Green text in Control Panel Accessing Lenovo programs from Control Panel An introduction to Lenovo programs Accessing Lenovo programs on the Windows 8 operating systemAccess Connections Client Security Solution Lenovo Solution Center GPS EnablerLenovo Settings Lenovo Mobile Access SimpleTap Recovery MediaRescue and Recovery System Update User Guide Register your computer Using your computerFrequently asked questions Need to attach or replace a device? Special keys and buttonsFunction key combinations Getting connected in different locations is a challenge? Changing the camera and audio settings Fn+F6 Power conservation Fn+F4Switching a display output location Fn+F7 Enabling or disabling the wireless features Fn+F5 Other functions Adjusting the brightness level of the computer displayMultimedia controls Setting the volume Volume and mute buttons Windows key Using the UltraNav pointing deviceUsing the TrackPoint pointing device Replacing the cap Customizing the settings of the TrackPoint pointing device Customizing the touch pad Using the touch padUsing the UltraNav pointing device and an external mouse Adding the UltraNav icon to the system tray Power managementChecking the battery status Using the ac power adapter Tips on using the ac power adapter Charging the batteryMaximizing battery life Connecting the ac power adapter Sleep Managing your battery powerPower-saving modes Wireless off Enabling the wakeup function Handling the batteryClick the Global Power Settings tab Using your computer Tips for using the wireless LAN feature Connecting to the networkWireless connections Wireless LAN Bluetooth Establishing wireless connectionsWireless WAN Tips for using the wireless WAN feature Select Send To Bluetooth Devices Using BluetoothSending data to a Bluetooth-enabled device Access Connections wireless status icon Checking the wireless network connection statusAccess Connections gauge Access Connections status icon Enabling or disabling the wireless features Using a projector or an external displayChanging display settings Connecting a projector or an external monitor Attaching an external monitor Connecting an external monitorSetting the monitor type Set Resolution Click Advanced Settings Considerations for attaching an external monitor Using the DVI monitor Select Multiple Displays Setting up a presentationUsing the Mini DisplayPort connector Playing sound Using the Extend desktop functionConsiderations for using the Extend desktop function Projecting video Configuring for sound recording Using the Nvidia Optimus Graphics featureUsing audio features Using the integrated camera DVD-ROM Drive Using the ThinkLight light featureUsing the optical drive Configuring camera settings Click Hardware and Sound User Guide Ergonomic information Accessibility and comfortYou and your computer What if you are traveling? Adjusting your computer to fit you Assistive technologies Accessibility informationTraveling with your computer Travel tips Travel tips on airplanes Travel accessories Security Using passwordsPasswords and sleep mode Typing passwords Hard disk passwords Power-on password Changing or removing a hard disk password Select Hard Disk 1 Password Supervisor password Select Supervisor Password Setting, changing, or removing a supervisor password Hard disk security Using Windows BitLocker Drive Encryption Setting the security chip Setting the security chip LED behavior of the fingerprint reader Using the fingerprint readerIndicator Description Enrolling your fingerprint Logging on to the system Care for the fingerprint reader Setting the fingerprint reader Security Protecting data against viruses Using firewalls Creating recovery media Recovery overviewRecovery overview for Windows 7 models Creating and using recovery media Performing a backup operation Performing backup and recovery operations Rescue files from your hard disk drive or from a backup Using the Rescue and Recovery workspacePerforming a recovery operation Click the Restore your system from a backup icon Creating a rescue medium Creating and using a rescue mediumUsing a rescue medium Reinstalling preinstalled device drivers Reinstalling preinstalled applications and device driversReinstalling preinstalled applications Refreshing your computer Solving recovery problemsRecovery overview for Windows 8 models Change PC settings General Recovery overview User Guide Static electricity prevention Replacing the batteryReplacing devices User Guide Using the extended life battery User Guide Replacing the hard disk drive User Guide Replacing devices Replacing the keyboard Replacing devices Installing the keyboard Replacing devices Replacing the memory module Replacing devices Replacing memory in the slot under the keyboard Replacing devices Replacing the wireless LAN/WiMAX card Replacing devices User Guide Replacing a PCI Express Mini Card with three connectors Remove the screw Remove the card Card pops up Replacing devices Installing and replacing the wireless WAN card Replacing devices Remove the card Replacing devices Replacing the SIM card Replacing the Ultrabay device User Guide Performing a hot or a warm swap Using the Serial Ultrabay Enhanced featureEnhancing your computer Finding ThinkPad options Performing a warm swap Installing a secondary hard disk drive Enhancing your computer ThinkPad port replicators and docking stations Enhancing your computer Rear view Enhancing your computer Attaching a ThinkPad port replicator or docking station Enhancing your computer User Guide Detaching a ThinkPad port replicator or docking station Security feature Using the system lock key 111 Advanced configurationInstalling a new operating system Before you begin Country or region Code Installing the Windows 7 operating systemSelect UEFI/Legacy Boot Installing the registry patches for Windows Installing device drivers Installing the Windows 8 operating system Click Properties Click Change display settings Click Advanced Settings Main menu ThinkPad Setup MAC address Internal LAN Config menu Keyboard/Mouse DisabledMenu item Submenu item Value Comments Auto ThinkPad LCD When Nvidia OptimusBoth Display Disabled No runtime Setting to Nvidia OptimusPower Battery Optimized Always Hours Beep and AlarmAutomatic VT100+ Menu item Submenu item Value Comments Serial ATA SataIntel AMT Security menu Menu item Submenu item Value Comments PasswordDate and Time menu Enter FingerprintExternal Internal Protection Enabled Bios ROM String Reporting Bios text stringSmbios Reporting Smbios data Update Option Anti-Theft Menu item Submenu item Value Comments Port Access Changing the startup sequence Startup menu UEFI/Legacy Boot Priority Menu item Value Comments BootNetwork Boot UEFI/Legacy Boot Both Restart menu Updating your system Uefi Bios System management Using system managementSetting management features Flash update Network Boot sequence 131 Preventing problemsGeneral tips for preventing problems Click Downloads and drivers Getting the latest drivers using System UpdateMaking sure device drivers are current Getting the latest drivers from the Web site Carry your computer properly Be careful about where and how you workTaking care of your computer Be gentle with your computer Register your computer Be sure not to modify your computer Take care in setting passwords Cleaning your computer display Cleaning the cover of your computerCleaning your computer keyboard User Guide Computer stops responding Troubleshooting computer problemsDiagnosing problems Troubleshooting If you spill something on your computer Error messagesSpills on the keyboard Troubleshooting computer problems Errors without messages Ethernet problems Beep errorsMemory module problems Networking problems Solution Wireless LAN problem UltraNav pointing device problems Problems with the keyboard and other pointing devicesWireless WAN problem Bluetooth problems Click Keyboard Problems with the display and multimedia devicesKeyboard problems Computer screen problems Click Advanced Settings External monitor problems Set Resolution Double-clickSound, video and game controllers Audio problems Fingerprint reader problems An ac power adapter problem Battery and power problemsBattery problems Startup problems Power problemsPower button problem Sleep and hibernation problems Optical drive problems Problems with drives and other storage devicesHard disk drive problems Solid state drive problem Software problems Docking station or port replicator problem Problems with ports and connectorsUSB problem User Guide Before you contact Lenovo Getting help and serviceGetting support Calling Lenovo Using diagnostic programsLenovo Support Web site Telephone numbers Purchasing additional services User Guide 161 Wireless related informationWireless interoperability Appendix A. Regulatory information Usage environment and your health Location of the UltraConnect wireless antennas Federal Communications Commission Declaration of Conformity Locating wireless regulatory noticesExport classification notice Electronic emissions notices German Class B compliance statement Industry Canada Class B emission compliance statement Appendix A. Regulatory information User Guide 167 Battery recycling information for JapanAppendix B. Weee and recycling statements Important Weee information Disposing of Lenovo computer components Battery recycling information for Brazil Battery recycling information for Taiwan Battery recycling information for the European Union User Guide 171 Appendix C. Notices Trademarks 173 China RoHS Turkish RoHSUkraine RoHS India RoHS Page Part Number 1P P/N