If your Office purchase was associated with a product key, enter your product key on one of the Web sites listed below for your version of Office. After you enter your key, you can download and install Office, or you can renew your Office 365 subscription.
Example of an Office product key:
Shows an example of an Office Product Key.
Office 365, Office 2019, Office 2016 and Office 2013 (PC and Mac)
To redeem a new Office purchase
Step 1: Switch to www.office.com/setup
Step 2: Sign in with your Microsoft account, or create an account if you do not already have one. Be sure to remember this account so that you can install or reinstall Office later without a product key.
Important: To renew an Office 365 subscription, enter the Microsoft account associated with your subscription. I can't remember which Microsoft account I used
Step 3: When prompted, enter your Office Product Key without dashes. If the option to enter the product key is not displayed, it was entered automatically.
Step 4: Follow the instructions to complete the redemption process.
Installing or Reinstalling Office
If you receive the error message This product key has already been used when you enter your product key at www.office.com/setup, it means that your product key has already been redeemed and is no longer valid.
Instead, use your Microsoft account to log on to account.microsoft.com and install your Office product.
If you want to share your Office 365 Home subscription, see Share your Office 365 Home subscription benefits.
These steps apply only to Office Professional Plus, Visio Professional or Project Professional.
Step 1: Start an Office app such as Word, Project or Visio, depending on your purchase.
Step 2: In the Sign In window for setting up Office, select the option that does not allow you to sign in or create an account (a small link at the bottom of the window).
Step 3: Enter your Office product key without dashes. If you cannot find your product key, consult Get HUP Product Key.
Shows the link that you must click to enter your Microsoft HUP product key.
Step 1: Go to www.microsoftstore.com and log on (top right) with the Microsoft account that you used to purchase Office.
Step 2: After you sign in, select your name in the top right corner, then select Order History.
Step 3: Find the one-time purchase of Office or the individual Office app, and then select Install Office to view the product key (this will not install Office).
Step 4: In the window that displays the product key, select Install Office again.
Step 5: On the Hello page, follow the instructions to sign in again and assign the product key to your Microsoft account.
Displays the Order History page in the Microsoft Store
Office 2010 or Office 2011 for Mac
Step 1: Switch to https://www.microsoft.com/software-download/office.
Step 2: Enter your Office Product Key without dashes, and then select Verify.
Step 3: Follow the instructions to complete the download process
Office 365 Business Premium
Step 1: Switch to https://www.office.com/setupkey.
Step 2: Enter your Office Product Key without dashes, and then select Next.
Step 3: Follow the instructions to complete the redemption and setup process