Download a copy windows 7 available from microsoft until february 10th here: 32-bit windows 7 (use if you have less than 4gb of ram) 64-bit windows 7 (use if you have 4gb of ram or more) otherwise. For mac users who also need to use a pc at work, home or just with specific applications, there is a solution. using boot camp assistant, you can install windows 7 on your intel-based mac computer in its own partition.. Boot camp assistant guides you through installing windows on your mac. open this app from the utilities folder inside the applications folder. then follow the onscreen instructions to repartition your startup disk and download related software drivers for windows..