If you bought Office through the Microsoft Store, you can enter your product key there. Without activation some software will still run but may be restricted in some way (inability to save work for example). › What does product activation failed meanįrequently Asked Questions What does product activation failed mean?Īctivation failure results in an inability to use or install the product or service.› Microsoft word product activation failed.› Product activation failed microsoft office.› Office product activation failed 2016.
