To activate Microsoft Office or Microsoft 365, visit Microsoft365.com/setup and sign in with your Microsoft account. Then, enter your 25-character product key to download, install, and start using your Office apps.
Key Highlights to Activate with your Product key
- Go to office.com/setup.
- Sign in or create a Microsoft account.
- Enter your 25-character Office product key.
- Follow the on-screen instructions to download and install Office.
- Launch any Office app and start using your subscription.
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