For Office for Mac, you can have up to 25 licenses associated with the same Microsoft account: only one license for an Office 365 subscription and multiple one-time-use installs of Office for Mac Home and Student or Home and Business. If you don't have a local user account, you must create one: From the Apple menu, select System Preferences Users & Groups.

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• Microsoft Office On Mac Reviews

You might see this error when you try to activate Office for Mac:

The system requires that you sign on to a valid account. The error code is: 0xD000000C

Troubleshoot error code 0xD000000C on Office for Mac

1. Make sure the internet is working on the Mac you're trying to install on. You can do this by opening your internet browser and going to www.microsoft.com. If the page loads, your internet connection is working.

   Office for Mac: As with the Windows versions, you’ll need your character product need the digit product key to download an Office suite from a Microsoft website. Enter product key microsoft office 2011 mac. The first time I rebooted I didn’t need the code.

2. Quit out of all Office apps.

3. Download and run the License removal tool to remove all the Office keychain entries.

4. Start any Office app again and follow the activation prompts.

Are you using a network account?

If you've signed in to your Mac using a Network account such as Open directory accounts, this error may occur because Office for Mac can't write your credentials into the keychain as it is 'read-only.'

1. If you are signed in with a network account, sign out and sign back in with your local user account. Try activation again.

2. If you don't have a local user account, you must create one:

   1. From the Apple menu, select System Preferences > Users & Groups.

   2. Select Click the lock to make changes, and type your password. Select Unlock.

   3. Select +, and then fill in the new account information, and then select Create User.

   4. Log into your local user account and activate again.

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Microsoft Office On Mac Reviews

If you're still having issues with activating Office for Mac, please contact Microsoft support.