Activate Office 365


How do I activate the Office 365 product?

I have a message that the product is not activated (Office 365).

I cannot accept calendar invitations.

I cannot save changes to my Word document.



Office 365 Pro Plus



Office 365 requires a license, and you must sign in to activate the product.



Note: Before you begin activating, if you haven't already, you'll need to redeem and install Office on your PC or Mac.

Activate Office 365 by signing in. From any Office application (such as Outlook):


  1. Click on the File tab in the upper left corner of your screen.
  2. Click Activate Product
  3. On the next screen, enter your Email Address
  4. Choose Work or School account
  5. Enter your Password
  6. Click Yes to allow Windows to remember your account on this device
  7. Wait while Office activates.
  8. Once you get the screen that it is activated, restart all Office applications
  9. Your Office account will then be activated and fully functional again!


mac OS X

  1. In the top menu bar select Finder > Applications.
  2. Scroll down to the Microsoft Office apps. Open any Office app, like Microsoft Word.
  3. In the What's New box that opens, select Get Started.
  4. On the Sign in to activate Office screen, select Sign in. The system will check to make sure your license is valid.
  5. Click Start Using to begin using the app.

Do you still need help?  Create a support ticket and someone will contact you. Microsoft Office


Article ID: 79308
Wed 5/29/19 2:39 PM
Thu 7/30/20 5:04 PM