At times some features of PowerPoint, Word Document, and Excel will be restricted with a message on top of your Ms word or PowerPoint showing Product Activation Failed. This can be as a result of invalid product key or inactive office subscriptions.
In this page we will show you some fews steps that can help you fix your Product Activation Failed in PowerPoint, Ms Word and Excel.
Step1: Go to your search bar on your PC and type This PC.
Step2: Double click on this This PC to open it.
Step3: Click on the local disk (C).
Step4: Double click on the Program files (x86)
Step5: Double click on the Microsoft office.
Step6: Double click on Office 16 and look for the file OSPPREARM
Step7: Right click on the OSPPREARM file and run as an administrator three times. Make sure to click yes in the pop up when you run as administrator. This will fix your problem.