You have to contact Microsoft Customer Service Center call this number: 1-800-MICROSOFT (1-800-642-7676)
When you contact the Customer Service Center please have the following items available to provide to the Customer Service Representative:
The Office 2010 installation disc (DVD) The readable parts of your original product key (if available) IMPORTANT:If you do not have these items the customer service agent will not be able to assist in providing a replacement product key.
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