If your purchase of Office or Microsoft 365 came with a product key, you enter your product key on one of the websites listed below for your product. After you enter your key, you can download and install it with www.office.com/setup, or you can renew your Microsoft 365 subscription.

To redeem a new purchase

Step 1: Go to www.office.com/setup or Microsoft365.com/setup.
Step 2: Sign in with your Microsoft account, or create one if you don't have one. Be sure to remember this account so that you can install or reinstall Office later, without a product key.
Important: If you're renewing your Microsoft 365 subscription, enter the Microsoft account that's associated with your subscription. I can't remember my Microsoft account.
Step 3: Enter your product key, without hyphens, if prompted. If you don't see the option to enter your product key, it was entered for you automatically.
Step 4: Follow the prompts to finish the redemption process.