To download, install, or reinstall Office 365 on PC, sign in at office.com/setup, go to your account, and click Install Office. Follow the prompts to complete setup and activate your apps.
How to Download, Install, or Reinstall Office 365 on a PC?
- Prepare for Installation
- Ensure your PC meets system requirements. If this is your first installation, go to office.com/setup, sign in, and redeem your product key.
- Sign In to Your Microsoft Account
- Go to office.com/setup or microsoft365.com/setup and sign in with your Microsoft account linked to your subscription.
- Download Office 365
- On the Microsoft 365 homepage, click Install apps or Install Office. Select the preferred version (32-bit or 64-bit) and click Install to download the installer.
- Run the Installer
- Open the downloaded OfficeSetup.exe file and follow the prompts. Allow changes to your device if asked.
- Complete Installation
- Wait for the process to finish. When you see “You’re all set! Office is installed now,” the setup is complete.
- Activate Office 365
- Launch any Office app (e.g., Word). Accept the license agreement, and sign in with your Microsoft account to activate.
Reinstalling Office 365
- Uninstall the current Office installation
- Open Control Panel > Programs > Programs and Features, select Microsoft Office 365, and click Uninstall. Follow the prompts to remove it.
- Repeat the steps above to download and reinstall Office 365.
Troubleshooting Tips
- If you don’t see the install option after signing in, there may be an issue with your account or license. Check the Need help? or the Account questions section for solutions.
- For installation issues, use the Microsoft 365 setup troubleshooter available on the Microsoft support site.