Microsoft Office Home And Business 2019 PC - Online activation — installation

Step 1: Redeem Your Product Key

Go to setup.office.com

Sign in with your Microsoft account (or create a new one if you don't have one)

Enter your 25-character product key when prompted

Click Next to link the license to your account

Step 2: Download Office

After redeeming the key, click "Install Office"

The download of the Office installer will begin automatically