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Table 4. Security menu items (continued)
Menu item
Startup menu
To change the startup settings of your computer, select the Startup tab from the ThinkPad Setup menu.
Attention:
• After you change the startup sequence, ensure that you select a correct device during a copy, a save, or a
format operation. Otherwise your data might be erased or overwritten.
• If you are using the BitLocker drive encryption, do not change the startup sequence. BitLocker drive
encryption locks the computer from starting once detects the change of startup sequence.
To change the startup sequence temporarily so that the computer starts from a desired drive, do the following:
1. Restart the computer. When the ThinkPad logo is displayed, press the F12 key.
2. Select the device that you want the computer to start from.
Note: The Boot menu will be displayed if the computer cannot start from any devices or the operating
system cannot be found.
The following table lists the Startup menu items. Default values are in boldface.
Note: Some items are displayed on the menu only if the computer supports the corresponding features.
Table 5. Startup menu items
Menu item
Boot
Network Boot
UEFI/Legacy Boot
Submenu item
Clear All Secure Boot Keys
Selection
• Both
• UEFI Only
• Legacy Only
UEFI/Legacy Boot Priority
• UEFI First
• Legacy First
CSM Support (for UEFI Only)
• No
Selection
• Yes
• No
Comments
Select the boot device when you
press the power button to turn on the
computer.
Select the boot device when the
computer wakes from LAN. If Wake
On LAN is enabled, a network
administrator can turn on all of the
computers in a LAN remotely by use
of network management software.
Select system boot capability.
• Both: Select priority of boot
options between UEFI and Legacy.
• UEFI Only: The computer will start
from the UEFI-enabled operating
system.
• Legacy Only: The computer will
boot from any operating system
other than the UEFI-enabled one.
Note: If you select UEFI Only, the
computer cannot start from the
Chapter 6
Comments
This option is used to clear
all keys and certificates in
Secure Boot databases.
You can install your own
keys and certificates after
selecting this option.
.
Advanced configuration
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