To install Office 365 that already purchased Key Code, visit office.com/setup, sign in with your Microsoft account, enter your product key, download the installer, and follow the on-screen instructions
 
 
  • Sign In: Log in with the Microsoft account you used to purchase Office.

  • Enter Product Key: Type in the 25-character product key you received with your purchase.

  • Link to Microsoft Account: If necessary, link the product key to your Microsoft account.

  • Download Office: Click “Install Office” to download the installer.

  • Run the Installer: Open the installer file to start the installation process.

  • Activate: Open any Office app (like Word or Excel) and sign in with your Microsoft account to activate the soft