To finish changing your product key, close all Office applications. Your Office application(s) are being updated now. If this is a new product key, you will be prompted to redeem the key to do this, simply follow the on-screen instructions. Change your product keyĮnter the Office 2016 or Office 2019 product key of your choice and simply click the Install this product instead option. You can skip straight to entering a product key if you are not logged into an account at the time of performing the product key change. If you are signed in to your Microsoft account, click the Use a different account button, and select Enter product key instead. In the Office app of your choice, navigate to the File menu and click on Account and Change license, which will take you to the window used to change the Office product key for Microsoft Office 20. You can locate them in your start menu (Windows icon) by searching for them or launching a desktop shortcut. Locate one of your Office 2016 or Office 2019 applications and open them. If you installed Office 2019, Use the following steps to change your Office 2019 product key: Step 1. How to change product key for Microsoft Office 20 Download, Install & Activate Office 2019 Pro Plus 100% Genuine You can do this in two different ways, one of which is using the Command Prompt for Windows operating systems. You can fix this by changing the product key for the other computers where you installed a copy of Office. However, causing conflict if more copies are being installed at once. This error occurs because every Install button has been associated with a unique product key that can be used for only one install on one personal computer, thus preventing you from re-using it without paying for another copy of Office. If you decide to purchase multiple copies of Microsoft Office 2016 or Microsoft Office 2019 and used the same Install button to install these copies of Office on multiple personal computers, the activation process will fail on all but one of these computers.

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