What to try if you can't install or activate Office 2016 for Mac

We're sorry you're having difficulty installing or activating Office 2016 for Mac. Let's figure it out together. We've put together a list of common issues and the suggested steps needed to find a solution.

To get started, go to the section you're having trouble with (download, install, activate, or account management) and choose your problem from the corresponding dropdown. Please read the instructions carefully and follow along.

Download issues

  • Check to make sure your 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!

  • If you've started a download and it's stuck, delete the download file by dragging it to Trash. Now, start the download again by clicking here.

    Note: In order to activate Office 2016 for Mac, you will need a valid and licensed Office 365 account or a Microsoft Account that is associated with a one-time purchase. If you don't, you won't be able to create or edit files, only read them.

  • Still not working? Delete the download file again. If you're using Safari to download the installer, open Preferences > Security tab > make sure Enable Javascript is selected. Then go to the Privacy tab > Manage Website Data > Remove all. Start the download again using the link in the previous bullet point.

    Note: If you're using a different internet browser, you can usually find these options in your browser's preferences or settings.

  • If you are receiving an error message while attempting to download the installer, delete the installer.pkg file and try the download in the link above from a different web browser. For example, if you're using Safari, try Chrome.

  • If you're still unable to download Microsoft_Office_2016_Installer.pkg, delete the file from your Mac again. This time, try the download from this link instead.

  • Wait for the download to be complete. It may take a while, and may start and stop. The final file size should be around 1.5 gb.

  • Move the Microsoft_Office_2016_Installer.pkg from the Downloads folder to the desktop, and then double-click to launch.

  • If it's still not working, delete the installer.pkg file and redownload by clicking here.

  • If the new download is still not working, delete the file again and try the download from this link instead.

The error that says the Microsoft_Office_2016_Installer.pkg can't be opened because it is from an unidentified developer, has been fixed in an update by Apple.

  • Click OK. Wait 10 seconds and try again.

  • Update to macOS Sierra version 10.12.

  • Restart your computer and install Office 2016 again.

  • Check to make sure your internet is working on the Mac you are trying to install on. Open your internet browser and go to www.microsoft.com.

  • Click the magnifying glass to view the Microsoft_Office_2016_Installer.pkg in the Downloads folder. Click and drag it to Trash to delete it. Try the download again by clicking here.

  • If you're still unable to download the file, delete the Microsoft_Office_2016_Installer.pkg again. Now try to download it from this link instead.

Installation issues

Have you seen this error?

"Microsoft Office 2016 can't be opened because it is from an unidentified developer."

This error occurs in MacOS 10.11. To fix this issue:

  • Click OK and wait 10 seconds. Try opening the file again.

  • The issue has been fixed by Apple in MacOS Sierra (10.12). We recommend you upgrade your OS to the latest version and then try again.

  • The download is corrupted. Drag the Microsoft_Office_2016_Installer.pkg to Trash to delete it.

  • Start the download again by clicking here.

  • If the new download is still not working, delete the installer.pkg file again and try the download from this link instead.

The error that says the Microsoft_Office_2016_Installer.pkg can't be opened because it is from an unidentified developer, has been fixed in an update by Apple.

  • Click OK. Wait 10 seconds and try again.

  • Update to macOS Sierra (10.12).

  • Restart your computer and install Office 2016 again.

  • Wait for the download to be complete. It may take a while, and may start and stop. The final file size should be around 1.5 gb.

  • Move the Microsoft_Office_2016_Installer.pkg from the Downloads folder to the desktop, and then double-click to launch.

  • If it's still not working, delete the installer.pkg file and redownload by clicking here.

  • If the new download is still not working, delete the file again and try the download from this link instead.

Check that your Mac meets or exceeds the minimum system requirements. For the most up-to-date system requirements information for Office 2016 for Mac, see System requirements for Office.

Activation issues

To complete the steps below, you'll need the email address and password associated with your active and licensed Office 365 subscription. This may be your Microsoft Account or the account you received from your organization.

  1. Check to make sure your 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.

  2. Reset your credentials:

    1. Open Spotlight by selecting the magnifying glass at the top right of your desktop.

    2. Search for and open Keychain.

    3. Type in Office and then delete the data license file.

    4. Download and run this script.

  3. Test your user account to rule out Local Profile corruption.

Have you seen this error?

"Installation limit reached
Your account <email address> has been used to activate Office on the maximum number of computers allowed. Visit your account page to manage your settings and then return here to retry activation."

To fix this issue, please follow the steps in Installation limit reached error when activating Office 2016 for Mac.

Have you seen this error?

"No Credentials. The system requires that you sign on to a valid account."

To address this issue, see "No Credentials" error when activating Office 2016 for Mac.

You've activated but you're still being asked to activate, or you keep seeing messages for "Activate Office to Create and Edit" when you've already activated:

  1. Quit the app. For example, if you're using Word, you'll go to the upper left corner of your screen and click Word > Quit Word.

  2. Restart any Office app and the message should be gone.

  3. If this is a constant issue, reset your credentials:

    • Open Spotlight by selecting the magnifying glass at the top right of your desktop.

    • Search for and open Keychain.

    • Type in Office and then delete the data license file.

    • Download and run this script.

  • Are you using the correct Microsoft Account (MSA)? Sign out and sign in again with the account associated with your Office 365 subscription. You may need to choose "Sign in with another account" to proceed.

    Tip: Try searching all of your email accounts for a confirmation email from Microsoft. This might help you find the email address that is your MSA.

  • If you have an Office 365 work or school account, your license may not have been set up by your system administrator. Contact your organization's tech support for more help.

  • If you don't have a current subscription, you can sign up for a trial account

Account Management

  • If you have an Office 365 Home, Personal, or University subscription:

    1. Go to http://office.com/myaccount and sign in with the email address and password of your Microsoft account.

    2. Select Services and Subscriptions at the top of the page.

    3. Under Subscriptions, verify that you have a current subscription to Office 365 Home, Office 365 Personal, or Office 365 University.

    Tip: If you know you have a current Office 365 subscription and don't see one here, you may have more than one Microsoft account. Try signing out and signing back in with a different email address and password.

  • If you have an Office 365 Business, ProPlus, Education, or any other Office for business plan:

    1. Sign in to the Office 365 portal.

    2. Go to Settings Settings: update your profile, install software and connect it to the cloud > Office 365 > Software.

    3. Verify that Office is shown in the list of available software.

    If you don't see Office in the list, then your organization's Office 365 subscription doesn't include the desktop version of the Office apps or your account has not yet been set up by your administrator. Contact your workplace tech support for more information.

    Tip: If you know your work or school's subscription includes the Office desktop apps but you don't see it here, you may have more than one Office 365 account. Try signing out and signing back in with a different email address and password.

You may also want to check your billing credentials to ensure that your information is correct and current.

Have you seen this error?

"Installation limit reached
Your account <email address> has been used to activate Office on the maximum number of computers allowed. Visit your account page to manage your settings and then return here to retry activation."

To fix this issue, please follow the steps in Installation limit reached error when activating Office 2016 for Mac.

Still having trouble? We're listening.

This article was last updated on November 28, 2016 because of your feedback. If you still need help installing or activating Office 2016 for Mac, tell us about your issue in detail by leaving us a comment below and we'll try to address it in the future.

You can also contact Microsoft support to talk to a human.

See Also

Activate Office 2016 for Mac

Office 2016 for Mac uninstall instructions

Where to sign in to Office 365

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