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• Use F6 or the combination of Shift and + to move the device up to a higher priority.
• 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 rst.
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.
• On each submenu, press Enter to show selectable options and select a desired option.
• Some items are displayed on the menu only if the computer supports the corresponding features.
Table 6. Startup menu items
Menu item
Selection Comments
Boot
See “Changing the startup sequence”
on page 119
.
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
– UEFI/Legacy Boot Priority
– UEFI First
– Legacy First
• UEFI Only
• Legacy Only
CSM Support (for UEFI Only)
• Yes
• No
Select system boot capability.
• Both: Select priority of boot
options between UEFI and Legacy.
• UEFI Only: The system will boot
from the UEFI enabled operating
system.
• Legacy Only: The system will boot
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 is selectable.
120 User Guide