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Installing Office for Mac 2011 error "This software requires an Intel-based Macintosh computer."

When you try to install Microsoft Office for Mac 2011, you receive the following error message:

Software Requirements
This software requires an Intel-based Macintosh computer.

This behavior may occur if the processor on the computer does not meet the Microsoft Office for Mac 2011 minimum system requirements. Office for Mac 2011 requires an Intel-based processor.

To determine whether your computer meets the minimum system requirements, follow these steps:

Step 1: Quit all applications and close all windows

You must quit all applications before you begin Office for Mac 2011 installation. To quit an application, select the application on the toolbar (top), and then select Quit. If you cannot quit an application or do not know how, hold down the Command and Option keys, and then press Esc on your keyboard. Select the application in the "Force Quit Application" window, and then select Force Quit. Click Force Quit to quit the application.

Note You cannot quit Finder.

When you are finished, click the red button in the upper-left corner.

Step 2: Determine the processor type

  1. On the Apple menu, select About This Mac.

  2. Note the processor type that is listed. If the processor is not an Intel processor, Office for Mac 2011 will not be installed. For information about upgrading the hardware, please contact Apple support: 


Article ID: 2405857 - Last Review: 08/29/2011 14:53:00 - Revision: 3.1

  • Microsoft Office for Mac Home and Business 2011
  • Microsoft Office for Mac Home and Student 2011
  • KB2405857