Security software may block the Office application from contacting Microsoft servers.
The "Product Activation Failed" error in Microsoft Office 2013 typically occurs when the software's licensing system can no longer verify your installation. While support for Office 2013 officially ended on April 11, 2023, you can still use and activate the software by following these troubleshooting steps. 1. The Quickest Fix: Use the OSPPREARM Tool Security software may block the Office application from