Asus H170M-E D3 User Guide - Page 74

Secure Boot, Boot from Storage Devices [Legacy Only], OS Type [Windows UEFI mode], Key Management

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Boot from Storage Devices [Legacy Only] Allows you to select the type of storage devices that you want to launch. Configuration options: [Ignore] [Legacy only] [UEFI driver first] Boot from PCI-E Expansion Devices [Legacy Only] Allows you to select the type of PCIe/PCI expansion devices that you want to launch. Configuration options: [Legacy only] [UEFI driver first] 2.8.9 Secure Boot Allows you to configure the Windows® Secure Boot settings and manage its keys to protect the system from unauthorized access and malwares during POST. OS Type [Windows UEFI mode] Allows you to select your installed operating system. [Windows UEFI mode] This item allows you to select your installed operating system. Execute the Microsoft® Secure Boot check. Only select this option when booting on Windows® UEFI mode or other Microsoft® Secure Boot compliant OS. [Other OS] Get the optimized function when booting on Windows® non-UEFI mode. Microsoft® Secure Boot only supports Windows® UEFI mode. Key Management This allows you to manage the Secure Boot keys. Install Default Secure Boot keys This item allows you to immediately load the default Security Boot keys, Platform key (PK), Key-exchange Key (KEK), Signature database (db), and Revoked Signatures (dbx). When the default Secure boot keys are loaded, all the Secure Boot keys' state will change from Unloaded mode to loaded mode. Save Secure Boot Keys This item allows you to save all the Secure Boot keys to a USB storage device. PK Management The Platform Key (PK) locks and secures the firmware from any non-permissible changes. The system verifies the PK before your system enters the OS. Set New Key This item allows you to load the downloaded PK from a USB storage device. Delete key Allows you to delete the PK from your system. Once the PK is deleted, all the system's Secure Boot keys will not be active. Configuration options: [Yes] [No] The PK file must be formatted as a public key certificate or UEFI variable structure with time-based authenticated variable. KEK Management The KEK (Key-exchange Key or Key Enrollment Key) manages the Signature database (db) and Revoked Signature database (dbx). 2-40 Chapter 2: Getting started

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Boot from Storage Devices [Legacy Only]
Allows you to select the type of storage devices that you want to launch. Configuration
options:
[Ignore] [Legacy only] [UEFI driver first]
Boot from PCI-E Expansion Devices [Legacy Only]
Allows you to select the type of PCIe/PCI expansion devices that you want to launch.
Configuration options: [Legacy only] [UEFI driver first]
2.8.9
Secure Boot
Allows you to configure the Windows
®
Secure Boot settings and manage its keys to protect
the system from unauthorized access and malwares during POST.
OS Type [Windows UEFI mode]
Allows you to select your installed operating system.
[Windows UEFI mode]
This item allows you to select your installed operating system.
Execute the Microsoft
®
Secure Boot check. Only select this
option when booting on Windows
®
UEFI mode or other Microsoft
®
Secure Boot compliant OS.
[Other OS]
Get the optimized function when booting on Windows
®
non-UEFI
mode. Microsoft
®
Secure Boot only supports Windows
®
UEFI
mode.
Key Management
This allows you to manage the Secure Boot keys.
Install Default Secure Boot keys
This item allows you to immediately load the default Security Boot keys, Platform key
(PK), Key-exchange Key (KEK), Signature database (db), and Revoked Signatures
(dbx). When the default Secure boot keys are loaded, all the Secure Boot keys’ state
will change from Unloaded mode to loaded mode.
Save Secure Boot Keys
This item allows you to save all the Secure Boot keys to a USB storage device.
PK Management
The Platform Key (PK) locks and secures the firmware from any non-permissible
changes. The system verifies the PK before your system enters the OS.
Set New Key
This item allows you to load the downloaded PK from a USB storage device.
Delete key
Allows you to delete the PK from your system. Once the PK is deleted, all the
system’s Secure Boot keys will not be active. Configuration options: [Yes] [No]
The PK file must be formatted as a public key certificate or UEFI variable structure with
time-based authenticated variable.
KEK Management
The KEK (Key-exchange Key or Key Enrollment Key) manages the Signature database
(db) and Revoked Signature database (dbx).
2-40
Chapter 2: Getting started