The "Product Activation Failed" error in Microsoft Word and other Office applications (such as Excel, PowerPoint, etc.) ...

Call Microsoft customer service at 1-800-Microsoft (642-7676) to request a replacement product key; a credit card fee may be required.

The Cheapest Way to Get Office Today There is a way, however, to install, download, activate and buy cheap Microsoft Office Professional Plus 2016 using a product key purchased for a very low price.

5] RTL The retail product key is something a customer receives when he purchases a Full Packaged Product (FPP), a.k.a a boxed copy of Windows from a retail merchant or online via the Microsoft Store.

A number of Microsoft Office 365 users are reporting problems signing into and activating their Office apps. Written by Mary Jo Foley, Senior Contributing Editor Aug. 16, 2018 at 10:46 a.m. PT ...