Use the Boot Camp Utility for Windows 7 Upgrade Installation Utility before upgrading from Windows Vista to Windows 7. This utility safely unmounts the read-only Macintosh volume on Microsoft Vista.
- Download the Apple_Win7_Upgrade.zip file.
- Double-click the zip file to uncompress it.
- Double-click on Apple_Win7_Upgrade_Utility.exe to start the utility.
- When "An unidentified program wants access to your computer" appears, click Allow.
- When "Boot Camp Utility for Windows 7 Upgrade installation" appears, click OK.
- When "Preparation was successful" appears, click OK to restart your computer.
- After your computer restarts, validate that the Macintosh volume has been removed by clicking Start > Computer. The Macintosh volume should not be visible.
- Perform the upgrade installation from Microsoft Windows Vista to Windows 7.
Note: To remount the Macintosh volume while running Windows 7, insert a Mac OS X v10.6 (or later) Install DVD. Click Boot Camp Drivers, then click Repair.
When installing Windows 7 on an iMac (27-inch, Late 2009) using Boot Camp, a black screen may appear. This can happen because the Windows 7 installer does not include the necessary graphics or Bluetooth drivers for your Mac. See iMac (27-inch, Late 2009) displays a black screen during installation of Windows 7 using Boot Camp for more information.