
Uninstall Unused Microsoft Office Programs Then you can try to open the Office application again to check if it fixes the product activation failed error in Microsoft Office.Click Apply and click OK to save the settings.Check the “Run this program as an administrator” option.Right-click the Office app and select the Properties option.Try to Run the Office App as an Administrator After that, you can open Microsoft Office apps again to see if the product activation failed issue is fixed. Repeatedly run the OSPPREARM file several times.

Right-click the OSPPREARM application and select Run as administrator.

In this article, we will show you how to solve the product activation failed problem in Microsoft Office and how to recover your missing Office files using a free data recovery software.

Free PC Backup Software for Windows 11/10/8/7.How to Recover Deleted/Lost Office Files.How to Fix Product Activation Failed in Microsoft Office.A professional free data recovery program from MiniTool is also provided to help you recover deleted or lost Office files like Word documents, Excel spreadsheets, PowerPoint files, etc. How to fix product activation failed error in Microsoft Office 2019, 2016, etc.? This post provides some possible solutions.
