Secure Boot - Asus STRIX Z270F GAMING Bios Manual

CSM (Compatibility Support Module)
support the various VGA, bootable devices and add-on devices for better compatibility.
Launch CSM
[Auto]
[Enabled]
[Disabled]
The following items appear only when you set the Launch CSM to [Enabled].
Boot Device Control
This item allows you to select the type of devices that you want to boot.
[UEFI only]
Boot from Network Devices
This item allows you to select the type of network devices that you want to
launch.
Boot from Storage Devices
This item allows you to select the type of storage devices that you want to
launch.
Boot from PCI-E/PCI Expansion Devices
This item allows you to select the type of PCI-E/PCI expansion devices that
you want to launch.

Secure Boot

OS Type
[Windows UEFI
Mode]
[Other OS]
ASUS STRIX Z270F GAMING BIOS Manual
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.
This item allows you to select your installed operating system.
Execute the Microsoft
this option when booting on Windows
®
Microsoft Secure Boot compliant OS.
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-
®
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