Asus Z170I PRO GAMING User Guide - Page 74

Secure Boot, Boot from PCI-E/PCI Expansion Devices [Legacy OPROM first]

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Launch CSM [Enabled] [Auto] The system automatically detects the bootable devices and the add-on devices. [Enabled] For better compatibility, enable the CSM to fully support the non-UEFI driver add-on devices or the Windows® UEFI mode. [Disabled] Disable the CSM to fully support the Windows® Security Update and Security Boot. The following four items appear when you set Launch CSM to [Enabled]. Boot Device Control [UEFI and Legacy OPROM] Allows you to select the type of devices that you want to boot up. Configuration options: [UEFI and Legacy OPROM] [Legacy OPROM only] [UEFI only] Boot from Network Devices [Legacy OPROM first] Allows you to select the type of network devices that you want to launch. Configuration options: [Legacy OPROM first] [UEFI driver first] [Ignore] Boot from Storage Devices [Legacy OPROM first] Allows you to select the type of storage devices that you want to launch. Configuration options: [Both, Legacy OPROM first] [Both, UEFI first] [Legacy OPROM first] [UEFI driver first] [Ignore] Boot from PCI-E/PCI Expansion Devices [Legacy OPROM first] Allows you to select the type of PCI-E/PCI expansion devices that you want to launch. Configuration options: [Legacy OPROM first] [UEFI driver first] 2.8.10 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] Executes 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, Windows® Vista/XP, or other Microsoft® Secure Boot non-compliant OS. Only on Windows® UEFI mode that Microsoft® Secure Boot can function properly. The following item appears when OS Type is set to [Windows UEFI mode]. Key Management Allows you to manage the Secure Boot keys. 2-40 Chapter 2: Getting started

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2-40
Chapter 2: Getting started
Launch CSM [Enabled]
[Auto]
The system automatically detects the bootable devices and the add‑on
devices.
[Enabled]
For better compatibility, enable the CSM to fully support the non‑UEFI
driver add‑on devices or the Windows
®
UEFI mode.
[Disabled]
Disable the CSM to fully support the Windows
®
Security Update and
Security Boot.
The following four items appear when you set Launch CSM to [Enabled].
Boot Device Control [UEFI and Legacy OPROM]
Allows you to select the type of devices that you want to boot up. Configuration options:
[UEFI and Legacy OPROM] [Legacy OPROM only] [UEFI only]
Boot from Network Devices [Legacy OPROM first]
Allows you to select the type of network devices that you want to launch. Configuration
options: [Legacy OPROM first] [UEFI driver first] [Ignore]
Boot from Storage Devices [Legacy OPROM first]
Allows you to select the type of storage devices that you want to launch. Configuration
options: [Both, Legacy OPROM first] [Both, UEFI first] [Legacy OPROM first] [UEFI driver
first] [Ignore]
Boot from PCI-E/PCI Expansion Devices [Legacy OPROM first]
Allows you to select the type of PCI‑E/PCI expansion devices that you want to launch.
Configuration options: [Legacy OPROM first] [UEFI driver first]
2.8.10
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]
Executes 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, Windows
®
Vista/XP, or other Microsoft
®
Secure Boot
non‑compliant OS. Only on Windows
®
UEFI mode that Microsoft
®
Secure Boot can function properly.
The following item appears when
OS Type
is set to [
Windows UEFI mode
].
Key Management
Allows you to manage the Secure Boot keys.