This presents a problem as we have hundreds of machines, all with their own personal copy of Office but when we want to trickle it down and have to do a factory reset there is no way to find the product key that was used to install that copy. ERROR DESCRIPTION: The Software Licensing Service reported that the product could not be. Office 2013 doesnt seem to have ANY way to find the product key for itself. Product Key Explorer is a powerful product key finder solution for Windows, designed to help users find, recover and backup activation keys for +10000 popular software programs installed on local or network computers. ProduKey is a small utility that displays the ProductID and the CD-Key of Microsoft Office (Microsoft Office 2003, Microsoft Office 2007), Windows (Including Windows 8/7/Vista), Exchange Server. Office 2013 Professional Plus Wont Activate with Technet Key.