Table 6. Startup menu items (continued)
Menu item
Selection
Comments
UEFI/Legacy Boot
•
Both
• UEFI Only
• Legacy Only
UEFI/Legacy Boot Priority
• UEFI First
•
Legacy First
CSM Support
(for UEFI Only)
• No
•
Yes
Select system boot capability.
•
Both
: The system will boot by the
following
UEFI/Legacy Boot Priority
setting.
•
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. For
Both
or
Legacy Only
mood,
CSM Support
is
not selectable.
Boot Mode
•
Quick
• Diagnostics
The
Quick
boot is intended to boot the
operating system as soon as possible
by reducing the POST elapsed time. The
Diagnostics
boot is to be used for the
problem determination by performing
tests of the devices.
Option Key Display
• Disabled
•
Enabled
If you select
Disabled
, then the message
“To interrupt normal startup, press Enter”
is not displayed during the POST.
Boot Device List F12 Option
• Disabled
•
Enabled
If you select
Enabled
, the F12 key is
recognized and the
Boot
menu window
is displayed.
Boot Order Lock
•
Disabled
• Enabled
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.
Restart menu
If you need to close the ThinkPad Setup program and restart the system, select
Restart
from the ThinkPad
Setup program main menu. The following submenu options are displayed:
•
Exit Saving Changes
: Restart the system after saving the changes.
•
Exit Discarding Changes
: Restart the system without saving the changes.
•
Load Setup Defaults
: Load the default setting that was in effect at the time of purchase.
Enable
OS Optimized Defaults
to meet the Microsoft Windows 8 certification requirements. When you
change this setting, some other settings are changed automatically. The affected settings are
CSM
Support
,
UEFI/Legacy Boot
,
Secure Boot
, and
Secure RollBack Prevention
.
•
Discard Changes
: Discard the changes.
•
Save Changes
: Save the changes.
Chapter 7
.
Advanced configuration
81
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