Lenovo ThinkPad L560 User Manual page 121

Table 3. Security menu items (continued)
Menu item Submenu item
Anti-Theft Computrace
Secure Boot Secure Boot
Platform Mode
Secure Boot Mode
Reset to Setup Mode
Restore Factory
Keys
Clear All Secure
Boot Keys
Intel (R) SGX Intel (R) SGX Control
Change Owner
Epoch
Value
• Disabled
• Enabled
• Permanently Disabled
• Disabled
• Enabled
• Setup Mode
• User Mode
• Standard Mode
• Custom Mode
• Disabled
• Enabled
• Software Controlled
Comments
Enable or disable the UEFI BIOS
interface to activate the computrace
module. Computrace is an optional
monitoring service from Absolute
Software.
Note: If you set the computrace module
activation to Permanently Disabled,
you cannot 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.
Specify the system operating mode.
Specify the Secure Boot 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 the Windows 10 operating system.
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.
This option enables or disables Intel
Software Guard Extensions (SGX).
• Disabled: Disables SGX
• Enabled: Enables SGX
• Software Controlled: Software
Guard Extensions will be controlled
by SGX application for UEFI boot
operating system.
This option changes Owner Epoch to a
new random value. This option is used
for clear user data of SGX.
.
Chapter 8 Advanced configuration
105