Table 4. Security menu items (continued)
Menu item
Submenu item
Selection
Comments
Anti-Theft
Computrace
•
Enabled
• Disabled
• Permanently
Disabled
Enable or disable the UEFI BIOS
interface to activate the computrace
feature. The computrace feature
enables you to track and secure
your computer.
Note:
If you set the
Computrace
item as
Permanently Disabled
, it
cannot be enabled again.
Secure Boot
•
Disabled
• Enabled
Enable or disable the Secure Boot
feature.
If you enable the Secure Boot,
the following item settings on the
Startup
menu also will change
automatically:
1. The
UEFI/Legacy Boot
setting
will change to
UEFI Only
.
2. The
CSM Support
setting will
change to
No
.
Select
Enable
to prevent
unauthorized operating systems
from running at boot time.
Select
Disabled
to allow any
operating systems to run at boot
time.
Note:
This item is set as
Disabled
by default when the
OS Optimized
Defaults
on the
Restart
menu is
set as
Disabled
. This item is set
as
Enabled
by default when the
OS Optimized Defaults
is set as
Enabled
.
Platform Mode
• User Mode
• Setup Mode
Specify the system operating mode.
Secure Boot Mode
• Standard Mode
• Custom Mode
Specify the Secure Boot mode.
Reset to Setup Mode
• Yes
• No
This option is used to clear the
current platform key and put the
system into setup mode. You can
install your own platform key and
customize the Secure Boot signature
databases in setup mode. Secure
Boot mode will be set to custom
mode.
Restore Factory Keys
This option is used to restore all
keys and certificates in Secure Boot
databases to factory defaults. Any
customized Secure Boot settings will
be erased, and the default platform
key will be re-established along with
Secure Boot
78
ThinkPad S3, ThinkPad Yoga 14, and ThinkPad Yoga 460 User Guide
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