Invalid product key errors in Microsoft Office

Support for Office 2003 has ended

Microsoft ended support for Office 2003 on April 8, 2014. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

Are you receiving an invalid product key error in Microsoft Office 2010?

If you see this error message after entering your product key, start the Online Solution Wizard.

This is not a valid Office Product key. See above examples to learn more.

Run the Online Solution Wizard for a step-by-step solution is available to resolve this problem.

Are you receiving an invalid product key error in an earlier version of Microsoft Office?

If you are looking for information on validation errors in an earlier version of Microsoft Office, click to view the following article in the Microsoft Knowledge Base:

2549291 Invalid product key errors in Microsoft Office 2007 or 2003


References
Do you have problems finding your Office 2010 product key?
Learn more about how to find your Office 2010 product key.

Did you lose your Office product key? Are you looking for information about how to replace it?
Learn more about how to replace a lost or damaged Microsoft Office 2010 product key.

Do you have questions about the Office 2010 product key card?
Read frequently asked questions about product key cards.

Here are other resources you can explore if this article cannot resolve your problem:
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Article ID: 836178 - Last Review: 06/04/2013 09:12:00 - Revision: 25.0

Microsoft Office 2010 Service Pack 1, Microsoft Office 2007 Compatibility Pack Service Pack 1, Microsoft Office 2003 Service Pack 3

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