Hello nely96,
If the Office product was purchased in a retail package, the product key is on a yellow-orange label inside the package. Office 2007 product key labels have "Proof of License" on this label.
If the Office product was purchased preinstalled on a new computer, the product key will be located on a Certificate of Authenticity card that would be affixed to the disc envelope/sleeve that contain the Office discs, which would have been included with
your computer. If the product was preinstalled on an "Office-Ready Computer" then the product key and Certificate of Authenticity would be in a DVD-movie-style case called a Medialess Licesning Kit (there are no dicss).
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