Unlicensed Office 2019 error code – Revoke the license file using these steps

The Unlicensed Product Microsoft Office 2019 Error is common among Home and Student versions.  To use the core applications in any edition, you need to activate the proper method for each edition. When you open Microsoft Word, Excel, or PowerPoint for the first time, you will see a message that says: “Unlicensed Microsoft Office.”