Startup Menu - Lenovo ThinkPad T540p User Manual

Table 5. Security menu items (continued)
Menu item
Secure Boot

Startup menu

To change the startup settings of your computer, select the Startup tab from the ThinkPad Setup menu.
Attention:
116
User Guide
Submenu item
Secure Boot
Platform Mode
Secure Boot Mode
Reset to Setup Mode
Restore Factory keys
Selection
• Disabled
• Enabled
• Setup Mode
• User Mode
• Standard Mode
• Custom Mode
• Yes
• No
• Yes
• No
Comments
Note: If you set the
computrace module
activation to Permanently
Disabled, you will be
unable to enable this
setting again.
Enable or disable the
UEFI Secure Boot feature.
Select Enable to prevent
unauthorized operating
systems from running at
boot time. Select Disabled
to allow any operating
systems to run at boot time.
Windows 8 operating
system requires this feature
to be enabled.
Specify the system
operating mode.
Specify the system
operating mode.
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.
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
the original signature
databases including
certificate for Windows
8 operating system.