
Boot Camp installer that will create a bootable USB Flash to install Windows 8. Step 3: (skip this step if you do not select the Create a Windows 7 install disk option) In this step, you need to select the ISO file containing the Windows 8 installer and USB devices you want to use to contains Windows 8.

By default, all three options are enabled if you are using a Mac Mini, MacBook Air, and you will now select the first option (Create a Windows 7 install disk) to create a USB Flash contains the Windows 8 installer. At this point, you will select one of the other two options and click the Continue button to confirm. If the Create a Windows 7 install disk option is not valid, it means that your computer does not support installing Windows from USB Flash.
