To set up Boot Camp, you need the proper ingredients:
A copy of Windows 7 or later. OS X requires the Home Premium, Pro, or Ultimate editions of Windows 7—or any version of Windows 8 or 8.1. In all cases, it has to be the 64-bit version of Windows, and it has to be a full installation copy—not an upgrade version.
A DVD copy of Windows is fine—if your Mac has a DVD drive. Since it probably doesn’t, you need an electronic copy of Windows, which you can download as a simulated ...