How to Get Rid of the “Product Activation Failed” Error?
Fortunately, there are few things that you can do in order to get rid of the “Product Activation Failed” error in PowerPoint.
Use the Correct Microsoft Office Account.
This can happen if you have two Microsoft accounts or if you have created a new account during the installation process of Microsoft Office.
Renew Your PowerPoint Subscription
If the license of your PowerPoint application has expired, then the best way to get rid of this error is to re-activate your PowerPoint license.
Product Key for Microsoft Office
You might be getting an error if you simply haven’t activated in the first place. You will have to enter the product key and activate the software.
Perhaps the problem lies not with the license itself or your Microsoft Account, but the problem may exist on your computer!
Microsoft Office is good at prompting for passwords and permissions, it can sometimes run into permission issues.