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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."
Activate Office 2007 - Word - Office.com
To activate an Office 2007 program, you must enter your 25-digit product key, if you haven't already done so during Setup.
Activate Office 2010 programs - Word - 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.
Activate Office 2013 programs - Word - Office.com
To activate an Office 2013 program, you must enter your 25-digit product key, if you haven't already done so during Setup.
How do I activate Word 2002?
When I try to activate I get an error message saying 'unable to process request ... use telephone'. When I use the telephone method no numbers are given. What to do?