This software allows Windows 7 to communicate with your Mac hardware. You will now download the Windows support software (drivers). Select the Apple icon at the top left of your screen and click 'Software Update.'.To format an external drive as MS-DOS (FAT), use Disk Utility, located in the Other folder in Launchpad.You can download the support software to an external drive.Install support software that lets Windows work with your Mac hardware.An external drive, such as a USB thumb-drive, formatted as MS-DOS (FAT).An installation disc with Windows 7 x32/64, depending on your Mac model.A built-in disc drive or a compatible external optical drive.If they aren't available, use a USB keyboard and mouse. The keyboard and mouse or trackpad that came with your Mac.If you are installing Windows on a portable computer, connect the power adapter. A Back-Up of your Disk BEFORE Partitioning or Installing Windows.A printed copy of this guide, which contains information you need to refer to when installing Windows.