If you've already purchased Office 365, simply go to office.com/setup, sign in with the account you used for the purchase, and click Install Office. This will let you download and install Office Setup on your device quickly.
 
Download Office 365 already purchased: Complete Guide
 
  1. Visit office.com/setup.
  2. Sign in with your Microsoft account at microsoft365.com/setup.
  3. Go to My Account or Services & Subscriptions.
  4. Find your Office 365 purchase.
  5. Click Install Office.
  6. Download the setup file.
  7. Run the installer.
  8. Follow on-screen prompts.
  9. Launch any Office app.
  10. Activation completes automatically after signing.
Benefits of Downloading Office 365 You've Already Purchased
  • Full Access to Premium Apps: Use Word, Excel, PowerPoint, Outlook, and more with full features.
  • Anywhere, Anytime Use: Install on multiple devices and access your files from anywhere via the cloud.
  • Always Up to Date: Enjoy automatic updates and the latest features without extra cost.
  • Secure Cloud Storage: Get 1TB of OneDrive storage per user for file backup and sharing.
  • Multi-Device Installation: Use Office across PC, Mac, tablet, and smartphone.
  • Built-in Security: Enhanced data protection and privacy controls.
  • Collaboration Tools: Real-time co-authoring and sharing make teamwork seamless.
  • Tech Support Included: Get access to Microsoft support for help with installation or usage.
  • No Extra Cost: Re-downloading doesn't require any additional purchase.
  • Easy Reinstallation: Quickly reinstall Office if you switch devices or reset your system.