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Invalid product key errors in Microsoft Office
Provides a solution to help resolve this validation error in Microsoft Office 2010: "This is not a valid Office Product key."
Microsoft Office Activation/Registration Privacy Statement - PowerPoint - Office.com
Office 2003 activation and registeration privacy notice
Activate or register programs in the Microsoft Office System - PowerPoint - Office.com
Show All Hide All Applies to Microsoft Office System To continue to use all the features of your product, you need to activate your software. Microsoft Product Activation is an
About product activation in Microsoft Office System products - PowerPoint - Office.com
To continue to use all the features of Microsoft Office 2003 , you need to activate your copy of Office. This wizard will guide you, step-by-step, through the process of
Activate Office 2010 programs - PowerPoint - Office.com
To activate an Office 2010 program, you must enter your 25-digit product key, if you haven't already done so during Setup.