ASROCK Z170A-X1/3.1 Manual De Instrucciones página 139

Step 7
Make sure the Windows 7 you are going to install is the 32-bit version or the 64-bit version.
For 64-bit Windows 7:
Copy all 12 files under the folders "HCSwitch" (x64) and "Win7" (x64) in the "Drivers" to
the subfolder "usb3" created in Step 2.
For 32-bit Windows 7:
Copy all 12 files under the folders "HCSwitch" (x86) and "Win7" (x86) in the "Drivers" to
the subfolder "usb3" created in Step 2.
Step 8
Open the "Start" menu and type "command" or "cmd" to launch the command prompt as
an administrator.
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