Lenovo ThinkPad A285 User Manual page 86

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Descriptions: Enable the UEFI BIOS interface to activate the computrace module. Computrace is an
optional monitoring service from Absolute Software. If you select Permanently Disabled, you cannot
enable this setting again.
Secure Boot
• Secure Boot
Values: Disabled, Enabled
Descriptions: Enable this option to prevent unauthorized operating systems from loading when you turn
on the computer. To enable this option, set the startup setting as UEFI Only and set CSM Support as No
first.
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
Descriptions: Specify the system operating mode.
• Secure Boot Mode
Values: Standard Mode, Custom Mode
Descriptions: Specify the Secure Boot mode .
• Reset to Setup Mode
Descriptions: 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
Descriptions: Use this option to restore all keys and certificates in Secure Boot databases to the factory
defaults.
• Clear All Secure Boot Keys
Descriptions: Use this option to clear all keys and certificates in Secure Boot databases and install your
own keys and certificates.
Device Guard
• Device Guard
Values: Disabled, Enabled
Descriptions: This option is used to support Microsoft Device Guard.
When this option is enabled, AMD V(TM) Technology, 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.
DASH configuration
• Dash Support
Values: Enabled, Disabled
Descriptions: Enable or disable DASH Support.
• Realtek LAN Controller
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A285 User Guide

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