Mac OS X is no doubt an ultimate OS but when it comes to gaming and other software, Windows is the most widely supported platform. So for those who have MacBook Pro Retina and wants to enjoy the latest games at 2880 x 1800 resolution gaming, you can install Microsoft Windows 7 on MacBook Pro Retina with several simple steps. Follow this instruction you do not need remove the Mac OS X, you can have both Mac OS X and Windows 7 on your rMBP. Apple has provided a utility named Boot Camp to install Windows 7 on Mac OS X. It will cost about 2 hours to install Windows 7 by following the instruction.
1. USB Flash Drive(Minimum 4GB)
2. 64 bits Windows 7 Installation iso image.(you can find it from Internet then download it)
3. Internet Connection.
Step 1: Find Boot Camp and Open it
Searching the utility named Boot Camp from Launchpad or using Spotlight from Finder Bar. It will guide you in installation of Windows 7.
Step 2: Select Tasks
You can select first two options at one time or you can check one at one time each from the BOOTCAMP screen. For “Create a Windows 7 Installation Disk” you need a USB Flash Drive and Windows 7 installation ISO image.
Step 3: Creat USB bootable drive
BOOTCAMP will ask you to creat USB bootable drive for Windows 7 installaion. you need to choose the windows 7 ISO image that you downloaded from Internet before. REMEMBER, the USB flash drive will be formatted. Make sure there is no useful data.
Step 4: Download Support Software for Windows
The support software are designed specifically for each Mac, they are required to fully support Windows and includes Boot Camp drivers that let you use your Apple keyboard, mouse and build-in camera. If you use a large USB flash drive (large than 6 GB) to creat the bootable drive from step 3, you can use the same flash drive to save the support files, which already formatted as MS-DOS(FAT).
Step 5: Create a partition for Windows
Create partition and adjust its size as your requirement, using the divider or select equal size to create equal size partition for Window7 installation. Make sure you adjust the size as needed as the Windows OS itself takes up about 30GB and if you are planning to play games you definitely need considerable disk space for which I would suggest minimum 70 GB partition.
Step 6: Install Windows 7
Make sure the Windows 7 USB flash drive is inserted into the Mac. After the drive has been partitioned, the system will reboot, and the Windows 7 installation process will begin. A screen will appear that asks you where you want to install Windows. Select the partition that’s called “BOOTCAMP.” Then, click “Drive options (advanced),” and then “Format.” Then, follow the rest of the onscreen instructions.
Step 7: Installaltion Process
Windows 7 installation will start and will start copying necessary files to your Mac. At this step, your Mac will restart several times to finish the installation. So no need to worry.
Step 8: Install the Support Software
On completion of installation, your Mac will restart. You Mac will now boot in Windows7. so do not get worried as its normal. Now on loading of Windows7, insert the USB Disk where you copied all drivers and Supported files and run the setup.exe.
Step 9: Set the Primary OS
Now your Mac has a fully functional Windows7 with all the drivers installed and working. If you want to set Windows or OS X as your Primary OS you can do that by launching BOOTCAMP from the right corner (where time is shown) the black square icon and select your primary OS. Also,You can select which OS to boot after you have installed Windows7 on your Mac Book by just pressing "options" button while your Mac boots and you will be presented with option of which OS to load.
Step 10: Enjoy Windows 7 on your rMBP
Ok! Now your MacBook Pro Retina can run windows 7 perfectly. Enjoy it!
Here is the source of installation of Windows 7 from Internet. You can get the image file from here.