Startup Menu - Lenovo S1 Yoga User Manual

Table 4. Security menu items (continued)
Menu item
Anti-Theft
Secure Boot

Startup menu

To change the startup settings of your computer, select the Startup tab from the ThinkPad Setup menu.
Submenu item
Intel AT Module Activation
Computrace
Secure Boot
Platform Mode
Secure Boot Mode
Reset to Setup Mode
Restore Factory keys
Selection Comments
• Disabled Enable or disable the UEFI BIOS
interface to activate the Intel AT
• Enabled
module, which is an optional
• Permanently
anti-theft service from Intel.
Disabled
Note: If you set the Intel AT
module activation to Permanently
Disabled, you will be unable to
enable this setting again.
• Disabled Enable or disable the UEFI BIOS
interface to activate the computrace
• Enabled
module. Computrace is an optional
• Permanently
monitoring service from Absolute
Disabled
Software.
Note: If you set the computrace
module activation to Permanently
Disabled, you will be unable to
enable this setting again.
• Disabled (if Enable or disable the Secure Boot
OS Optimized feature. Select Enable to prevent
Defaults is unauthorized operating systems
Disabled) from running at boot time. Select
Disabled to allow any operating
• Enabled (if
systems to run at boot time.
OS Optimized
Defaults is
Enabled)
• User Mode Specify the system operating mode.
• Setup Mode
• Standard Mode Specify the Secure Boot mode.
• Custom Mode
• Yes This option is used to clear the
current platform key and put the
• No
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.
• Yes This option is used to restore all
keys and certificates in Secure Boot
• No
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 8.1 operating system.
Chapter 7
.
Advanced configuration
71