Mac Office 365 Installation & Activation Guide

Complete walkthrough from download to activation | Works on Apple Silicon and Intel chips

Step 1: Download & Install

1 Download from the App Store Watch video tutorial

Open the App Store on your Mac and search for "Office 365":

Install Word, Excel, PPT

App Store search 'Office 365'

Step 2: Sign In & Activate

3 Open an app and sign in

After installation, open any Office app (for example, Word):

Office welcome screen

Click the "Sign in" button and use your Microsoft account.

4 Enter your account info

Enter your Office 365 account on the sign-in page:

Sign-in screen
Tip: We recommend copying and pasting the password (to avoid typing errors).
5 Change your password on first sign-in

If this is your first sign-in, you’ll be prompted to change your password:

Change password screen

Password requirements:

Step 3: Verify Activation

6 Check activation status

After signing in, click the app name at the top-left (e.g., "Word") → "About Word":

It should display "Product Activated" and your account email.

7 Troubleshooting

If it shows not activated:

  1. Click the "Home" icon at the top-left to return to Home
  2. Click your account avatar at the top-right → "Sign out"
  3. Find the "Activate" key icon at the bottom-left
  4. Sign in again to your account
Reactivation screen