Microsoft Office Home and Business 2019 MAC – BINDS to MS account — installation

Step 1: Redeem Your Product Key

Go to setup.office.com

Sign in with the Microsoft account you want the license permanently bound to (or create a new one)

Enter your 25-character product key when prompted (no hyphens needed)

Follow the on-screen instructions to associate the license with your account

Step 2: Download Office

After redeeming the key, click "Install Office"

The Mac installer will begin downloading automatically

Step 3: Install Office

Open your Downloads folder and locate the Microsoft_Office_2019_Installer.pkg file

Double-click it to launch the installer

Click Continue → Agree → Install

Enter your Mac login password if prompted, then click Install Software — this is the password you use to log in to your Mac

Click Close when installation is finished