This issue can be resolved by removing the Office registry values. The following describes how to modify the registry. Incorrect registry. If Office activation fails, you’ll see Unlicensed Product or Non-commercial use / Unlicensed Product in the title bar of your Office apps, and most features.
 
 

Office Product Activation failed, but was previously activated. – Microsoft Community – Step 1: Sign in with the right account

 
Mohan Suryanarayan. Now you will see the program files folder. Select your browser. You can download and use any product you are interested in.

Office product key change error step by step – Office | Microsoft Docs

 
Jul 19,  · How can fix Microsoft Word Product Activation Key Failed? We know all of the CD or DVD are copy write and for this reason key activation are not work properly. But when you install the Microsoft Word of Office You must to need an idea that is this CD or DVD ok and not illegal. Microsoft Office More key: 22HGXMX-BBWXBB8X-J96B4. May 25,  · I had a trial version of Office Pro Plus and it expired and gave me the message “Product Activation Failed”. I purchased the license for the full version, entered the product key code, but I still get that message in Outlook and Windows. This copy of Microsoft Office is not activatedMs office product activation failedMicrosoft office product activation failedProduct Activation FailedActivator.