Lenovo ThinkPad Yoga 14 (English) User Guide - ThinkPad Yoga 14 - Page 89
Boot Device List F12 Option, Boot Order Lock
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Table 6. Startup menu items Menu item Boot UEFI/Legacy Boot Boot Mode Option Key Display Boot Device List F12 Option Boot Order Lock Selection • Both • UEFI Only • Legacy Only UEFI/Legacy Boot Priority • Legacy First • UEFI First CSM Support • No • Yes • Quick • Diagnostics • Enabled • Disabled • Enabled • Disabled • Disabled • Enabled Comments Select the boot device when you press the power button to turn on the computer. Select system boot capability. • Both: The system boots by the following UEFI/Legacy Boot Priority setting. • UEFI Only: The system boots from the UEFI enabled operating system. • Legacy Only: The system boots from any operating system other than the UEFI enabled one. Note: If you select UEFI Only, the system cannot boot from the bootable devices that do not have the UEFI enabled operating system. Compatibility Support Module (CSM) is required for booting the legacy operating system. If you select UEFI Only, CSM Support will be selectable. For Both or Legacy Only mood, CSM Support will not be selectable. Note: The Both and the CSM Support selections are available when theOS Optimized Defaults on the Restart menu is set as Disabled, the UEFI Only selection is available when theOS Optimized Defaults on the Restart menu is set as Enabled. Quick: The diagnostic splash screen will not be displayed unless you press Esc during starting the system. Diagnostics: The diagnostic splash screen is always displayed during starting the system. Choose whether to show the option key message when the system is started. If you select Enabled, a pop-up boot device List will be displayed when you press F12 key. Note: Only the person who knows the supervisor password can change the setting of this option. If you select Disabled, your computer will boot using the default priority. If you select Enabled, your computer will boot using the priority you have customized. Chapter 5. Advanced configuration 73