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
Values: Setup Mode,
User Mode
Description: Specify the system operating mode.
•
Secure Boot Mode
Values:
Standard Mode
, Custom Mode
Description: Specify the
Secure Boot mode
.
•
Reset to Setup Mode
Description: Use this option to clear the current platform key and reset
Platform Mode
to
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
Description: Use this option to restore all keys and certificates in
Secure Boot
databases to the factory
defaults.
•
Clear All Secure Boot Keys
Description: Use this option to clear all keys and certificates in
Secure Boot
databases and install your
own keys and certificates.
Intel (R) SGX
•
Intel (R) SGX Control
Values: Disabled, Enabled,
Software Controlled
Description: Enable or disable the Intel Software Guard Extensions (SGX) function. If you select
Software
Controlled
, SGX will be controlled by SGX application for UEFI boot operating system.
•
Change Owner EPOCH
Description: Change Owner EPOCH to a random value. Use this option to clear SGX user data.
Device Guard
•
Device Guard
Values:
Disabled
, Enabled
Description: This option is used to support Microsoft Device Guard.
When this option is enabled, Intel Virtualization Technology, Intel VT-d Feature, Secure Boot, and OS
Optimized Defaults are automatically enabled. Boot order is not selectable. To complete the configuration
of Device Guard, you have to set a supervisor password.
When this option is disabled, the setup options are configurable and you can choose any boot options to
start the computer.
Startup menu
Note:
The BIOS menu items might change without notice. Depending on the model, the default value might
vary.
•
Boot
Description: Define the startup sequence.
•
Network Boot
71
Summary of Contents for ThinkPad P52
Page 1: ...P52 User Guide ...
Page 5: ...Appendix F Notices 147 Appendix G Trademarks 149 Copyright Lenovo 2019 iii ...
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