A. Installing Windows
As some operating systems already include Intel® SATA RAID/AHCI driver, you do not need to install separate RAID/AHCI driver during the Windows installation process.
After the operating system is installed, we recommend that you install all required drivers from the motherboard driver disk using "Xpress Install" to ensure system performance and compatibility. If the operating system to be installed requires that you provide additional SATA RAID/AHCI driver during the OS installation process, please refer to the steps below:
Step 1:
Copy the IRST-x64 or IRST-x86 folder (depending on your OS version) under the Boot folder in the driver disk
to your USB thumb drive.
Step 2:
Boot from the Windows setup disk and perform standard OS installation steps. When the screen requesting you
to load the driver appears, select Browse
.
Step 3:
Insert the USB thumb drive and then browse to the folder (IRST-x64 or IRST-x86) that you previously copied.
Step 4:
When a screen as shown in Figure 1 appears, select Intel Chipset SATA RAID Controller and click
Next to load the driver and continue the OS installation
From the manual. Windows 10 has it's own drivers though.