
Find license keys for Office 2010, Office 2013, Office 2016, Office 2019 and Office 2021 via a script The same applies to Office 2016, Office 2019 and Office 2021 licenses that are linked to your Microsoft Account. Note: Microsoft 365 installations don’t require a license key as they activate automatically when you log on to Office with your Microsoft Account. However, for either version there is no need to completely reinstall Office. The proper method to determine or change the Product Key depends on your version of Office or Outlook. While you could simply try one of your Product/License Keys and see if it gets accepted, it’s not a very sophisticated approach. How can I find out which license I've used for which computer and how can I change the key if needed?
Follow the prompts to finish the download process.I've got several licenses for Office and Outlook but I'm not sure which one which ones I've used and which ones are free. Enter your Office product key without hyphens, and then select Verify. Follow the prompts to finish the redemption and setup process. Enter your Office product key without hyphens, and then select Next. Let's get your Office’ page, follow the prompts to sign in again and associate your product key with your Microsoft account. Select Install Office again in the window where the product key appears. Locate the Office one-time purchase or individual Office app, and then select Install Office to view your product key (this doesn't actually install Office). After you sign in, select your name in the upper right-hand corner, and then select Order History. Go to and sign in with the Microsoft account that you used to buy Office. These steps apply if you’ve purchased your product through the Microsoft Store. Enter your Office product key, without hyphens. In the ‘Sign in to set up Office’ window, select I don't want to sign in or create an account. Start an Office app, like Word, Project, or Visio, depending on your purchase. These steps apply only to Office Professional Plus, Visio Professional, or Project Professional. Follow the prompts to finish the redemption process. If you don't see the option to enter your product key, it was entered for you automatically.
Enter your Office product key, without hyphens, if prompted.
Be sure to remember this account so that you can install or reinstall Office later, without a product key. Sign in with your Microsoft account, or create one if you don't have one.Office 365, Office 2019, Office 2016, and Office 2013 (PC and Mac) If your purchase of an Office product came with a 25 character product key, you can use the steps below based on which product you have to find out where you should enter that key to download and install your Office product.