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How do I install Office for Mac 2011 if my Mac doesn't have a DVD drive?

There are two options for installing Office for Mac if your Mac doesn't have a DVD drive.

Option 1: Convert your Office for Mac 2011 trial. To convert a trial version, you must have a valid product key. The product key will convert your trial into a fully licensed version of Office for Mac.

  1. Locate the 25-character product key in your product package or confirmation email.
  2. Open any Office for Mac application, like Word, PowerPoint, or Excel.
  3. On the first screen of the Microsoft Office Setup Assistant, click Enter your Product Key.
  4. Enter your product key and complete the installation instructions.

Option 2: If you have not previously installed the trial version, you can download Office for Mac from the Office for Mac website. To download, install, and activate the software you must have a valid Office 2011 product key.

  1. Locate your 25-character product key found in your product package or confirmation email.
  2. Go to
  3. Click Get Started to start the download process.
  4. When prompted, enter your 25-character product key and select your product language.
  5. When prompted, sign in with your Windows Live ID or sign up and create a new Windows Live ID account.
  6. After you enter your Windows Live ID, you will see a link to download the software. (You will also receive a confirmation email with a link to your My Account page if you prefer to wait and download your software at a later time.)
  7. Click Download Now to start the download.
  8. Save the file to your desktop. Do not change the file name.
  9. When the download is complete, double-click the .dmg file icon on your desktop. This opens the Installer application in Mac OS X.
  10. Follow the instructions in the installer screens to complete your installation.

I tried to download Office for Mac 2011 but my product key was rejected. What do I do?

If your product key is not accepted, verify that you have entered your product key correctly, using correct capitalization and hyphens. If the system is still not able to validate your product key please contact Microsoft Support.

Why do I need to create an Windows Live ID?

Your Windows Live ID allows you to log into your My Account page and re-download Office for Mac 2011 at a later date. From your My Account page you will be able to access your product key and re-download your software.

How long will it take me to download Office for Mac 2011?

Installation time will vary based on location and volume. It is recommended only high-speed broadband connections are used to download your file(s). The following are estimates of how long it will take for each .dmg file to download depending on your connection. If you are unsure of your connection speed, contact your internet service provider.

Approximate File
Size (MB)
Estimated Download and Installation Time for Office for Mac
1 Mbps* 3 Mbps 6 Mbps
992 <2 hrs. <40 min. <25 min.

*Megabit per second

If I need to reinstall Office for Mac 2011 and I don't remember my product key. What do I do?

After you sign up on you can come back at any time to log in to your My Account page and access your product key and download.