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If you have a Mac mini without a built-in SuperDrive, you have two ways to install Windows on your Mac using Boot Camp:
- If you have Windows in a ISO file > open Boot Camp Assistant, tick the option to create a Windows installation USB drive and follow the steps.
- If you have Windows in a DVD > buy an external optical drive, connect it to your computer, open Boot Camp Assistant and follow the steps to install Windows.
Don't forget to download Windows support software, and install it just after finishing the Windows installation.
If you need help installing Windows, print this file > http://manuals.info.apple.com/en_US/boot_camp_install-setup_10.7.pdf