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Article ID: 2549291 - Last Review: May 11, 2011 - Revision: 1.0

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Is this the invalid product key error that you receive?


In 2007 Microsoft Office

The key is incorrect. Verify that you have the correct key, and then retype it.


In Microsoft Office 2003

You have not entered a valid Product Key.
Please check the number located on the sticker on the back of the CD case or on your Certificate of Authenticity.


No, this is not the error I see.

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Yes, this is the validation error I see.

This error usually indicates the wrong product key was used or it was mistyped. To resolve the problem, follow these steps:

Step 1: Product key characters are not accepted or they are mistyped

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Step 2: The wrong product key is being used

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Step 3: Multiple Microsoft Office installations

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Step 4: Contact Microsoft Customer Support

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REFERENCES

Do you have problems finding your Office product key?
Click here for information about how to find your Office 2007 product key. (http://office.microsoft.com/en-us/outlook-help/enter-the-product-key-for-your-2007-office-system-program-HA010176931.aspx)
Click here for information about how to find your Office 2003 product key. (http://office.microsoft.com/en-us/suites/enter-the-product-key-for-your-microsoft-office-system-program-HA010176924.aspx)

Did you lose your Office product key? Are you looking for information about how to replace it?
Click here for information about how to replace a lost or damaged Microsoft Office product key. (http://support.microsoft.com/kb/823570)

Do you want installation and activation information about Office?
Click here for information about how to install and activate 2007 Microsoft Office system programs. (http://office.microsoft.com/en-us/help/installation-and-activation-information-for-2007-microsoft-office-programs-HA010173340.aspx)


Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use (http://go.microsoft.com/fwlink/?LinkId=151500) for other considerations.

APPLIES TO
  • Microsoft Office Excel 2003
  • Microsoft Office Outlook 2003
  • Microsoft Office PowerPoint 2003
  • Microsoft Office Word 2003
  • Microsoft Office Standard Edition 2003
  • Microsoft Office Professional Edition 2003
  • Microsoft Office Small Business Edition 2003
  • Microsoft Office Excel 2007
  • Microsoft Office Outlook 2007
  • Microsoft Office PowerPoint 2007
  • Microsoft Office Word 2007
  • Microsoft Office Basic 2007
  • Microsoft Office Ultimate 2007
  • Microsoft Office Standard 2007
  • Microsoft Office Small Business 2007
  • Microsoft Office Professional 2007
  • Microsoft Office Professional Plus 2007
Keywords: 
KB2549291
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