Step 3: Check the current status of Microsoft Office 365 subscription You will need to remove any extra copie s to fix this error. If there is more than one copy of Microsoft Office on your device you will not be able to open your Office apps. Step 2: Check for multiple copies of office This means not only logging in to your Microsoft account but making sure that it is the correct account that the products were bought on. How to Resolve Unlicensed Product Activation Errors Step 1: Sign in to the right accountīefore you can access your Microsoft Office products, you need to make sure you are signed in. Once this occurs, you will need to take a few steps to identify the problem and then fix it to reactivate your products. If your Office apps are not opening and showing 'Unlicensed Product ' or ' Non-commercial use/ Unlicensed Product' in the title bar, it means your Office products have been disabled.
