Secure Boot - Asus Z170-Premium series Manual

CSM (Compatibility Support Module)
This item allows you to configure the CSM (Compatibility Support Module) items to fully
support the various VGA, bootable devices and add-on devices for better compatibility.
Launch CSM [Enabled]
[Auto]
[Enabled]
[Disabled]
The following items appear only when you set the Launch CSM to [Enabled].

Secure Boot

This item allows you to configure the Windows
protect the system from unauthorized access and malwares during POST.
OS Type [Windows UEFI mode]
[Windows UEFI
Mode]
[Other OS]
Key Management
Install Default Secure Boot keys
This item allows you to clear all default Secure Boot keys.
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The system automatically detects the bootable devices and the add-
on devices.
For better compatibility, enable the CSM to fully support the non-UEFI
driver add-on devices or the Windows
Disable the CSM to fully support the non-UEFI driver add-on devices
or the Windows UEFI mode.
®
Boot Devices Control [UEFI and Legacy OPROM]
This item allows you to select the type of devices that you want to boot.
Configuration options: [UEFI and Legacy OPROM] [Legacy OPROM only]
[UEFI only]
Boot from Network Devices [Legacy only]
This item allows you to select the type of network devices that you want to
launch.
Configuration options: [Legacy only] [UEFI driver first] [Ignore]
Boot from Storage Devices [Legacy only]
This item allows you to select the type of storage devices that you want to
launch.
Configuration options: [Legacy only] [UEFI driver first] [Ignore]
Boot from PCI-E/PCI Expansion Devices [Legacy only]
This item allows you to select the type of PCI-E/PCI expansion devices that
you want to launch.
Configuration options: [Legacy only] [UEFI driver first]
This item allows you to select your installed operating system.
Execute the Microsoft
this option when booting on Windows
Microsoft Secure Boot compliant OS.
®
Get the optimized function when booting on Windows
UEFI mode. Microsoft
UEFI mode.
UEFI mode.
®
Secure Boot settings and manage its keys to
®
Secure Boot check. Only select
®
UEFI mode or other
®
Secure Boot only supports Windows
®
non-
®
®
Chapter 3: BIOS Setup