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How can I Activate office with product key?

To Activate office with product key, open Microsoft365.com/setup, enter the 25-character product key when prompted, and follow the on-screen instructions. This ensures your copy of Office is genuine and ready for use.

Steps to Activate office with product key

  • Open setup.office.com  (e.g., Word, Excel, PowerPoint).
  • Choose the "Activate" option.
  • Enter the 25-character product key provided with your Office purchase.
  • Sign in with your Microsoft account (if required).
  • Complete the activation process and enjoy full Office features.
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Last modified: 2025-10-14Powered by