MacBook Pro (13-inch, Late 2012), MacBook Air (Mid 2013): Distorted or black screen during Windows 7 or 8 installation

Symptoms

When installing Microsoft Windows 8 on a MacBook Pro (13-inch, Late 2012) using Boot Camp, or when installing Windows 7 on a MacBook Air (Mid 2013), a black or distorted screen may appear during the Windows installation process.?This happens because the Windows? installer does not include the necessary drivers for this Mac.

Resolution

You will need to start your installation of Windows 7 or 8 again and follow the steps below to correct this issue. The steps involve creating USB media containing the current Boot Camp Windows Support Software (drivers) for you to connect to your Mac during the install process.

1. In OS X, choose Utilities from the Go menu.
2. Open Boot Camp Assistant.
3. Click Continue.
4. If you are using a downloaded copy (ISO) image of Windows 7 or 8, click the checkbox next to?"Create a Windows 7 or later install disk" so it has a checkmark in it.
5. To install Windows, click the checkbox next to?"Install Windows 7 or later version"?so it has a checkmark in it.
6. To create USB?media that contains the ISO installer and the correct drivers for your computer, click the checkbox next to "Download the latest Windows support software from Apple"?so it has a checkmark in it.
   
7. Click Continue. You'll be asked to attach the USB media (flash drive or hard drive) that the Windows Support Software (drivers) can be installed on. Caution: All data on the USB?media will be erased during this process. Follow the onscreen instructions to complete the creation of the media. If you want to create your own driver installation media without using the Boot Camp Assistant, click here?and follow the instructions on the download page.
8. Follow the onscreen instructions to complete the Windows 7 or 8 installation. For more information, see the Boot Camp 5 Installation Manual.
   

Additional Information

You can also use a Windows 7 or 8 DVD to install Windows on your computer if you have an external USB optical drive. This requires a few more steps than the process above.

1. Attach an external optical drive and put the Windows Install DVD in it.
2. After the drive appears on the desktop, choose?Utilities?from the?Go?menu.
3. Open Boot Camp Assistant
4. Click Continue.
5. Click the box next to "Download the latest Windows support software from Apple" and "Install Windows 7 or later version" so a checkmark appears in the box.?
6. Click Continue. You'll be asked to attach the USB media (flash drive or hard drive) that the Windows Support Software (drivers) can be installed on. Caution: All data on the USB?media will be erased during this process. Follow the onscreen instructions to complete the creation of the media. If you want to create your own driver installation media without using the Boot Camp Assistant, click?here?and follow the instructions on the download page.
7. Keep the USB media that contains the drivers connected to your Mac's USB?port.
8. You will be asked to create a partition on which to install Windows. Use the slider to select the partition size and click Install.
9. After partitioning is complete, your Mac will restart.
10. Wait for the startup chime to sound, then hold the Option key?until you see startup drive options. Note:?Holding down the option key is critical to a successful DVD installation. The MacBook Pro will attempt to boot to the USB media instead of the DVD if the Option key is not held down at the chime. If you miss the chime and the screen goes black, or you see a "Press any key to boot from CD or DVD" or other message, try this:
    • Power off the computer by holding the power button. When the computer powers off, press the power button again to power on the computer. Hold down the Option key when the chime sounds until you see startup drive options.
11. Click the Windows DVD icon, then click the up arrow underneath it.
12. Your Mac will now start to the Windows installer. Follow the onscreen instructions to complete the Windows installation.

Important: Information about products not manufactured by Apple is provided for information purposes only and does not constitute Apple?s recommendation or endorsement. Please contact the vendor for additional information.

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Source: http://support.apple.com/kb/TS4517

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