Unlicensed Error Message: 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. Once this occurs, you will need to take a few steps to identify the problem and then fix it to reactivate your products. Here you find more efficient solutions for office Unlicensed Error Message. We received many queries regarding Unlicensed Products. If you find similar issues like this please follow our FAQs.