Enter the product key for your Office 2007 program
This article is for Office 2007. Got another version? Try one of these:
When you install your Office 2007 program, you are prompted to type or paste in the 25-character Product Key.
The Product Key for a Full product may be located or requested in one of the following locations:
Sticker on the CD case or other packaging.
Certificate of Authenticity.
Confirmation email message received from an online purchase.