Enter the Product Key for your 2007 Office system program
When you install your 2007 Microsoft Office system program, you are prompted to type or paste in the 25-character Product Key.
Important Although you are not required to enter your Product Key at installation, we recommend you do so because it helps to verify that your software is legitimate. You may run your 2007 Microsoft Office system programs up to 25 times before you are required to enter a Product Key. After this grace period, if you have not entered a valid Product Key, the software goes into Reduced Functionality mode and many features are unavailable.
What do you want to do?
Locate the Product Key for a Trial product
Depending on how the Trial product was obtained (CD/DVD, downloaded, subscription, or preinstalled by the computer manufacturer, system builder, or reseller), the Product Key may be located in one of the following locations:
Desktop Trial icon when a preinstalled trial is available.
Sticker on CD case or other packaging.
Microsoft Product Identifier Card.
Confirmation e-mail message received from an online download or renewal notice.
Important If you are unable to locate the Product Key for your Trial product, visit the 2007 Microsoft Office suites Personal Computer Trial Site for more information on how to request a Product Key.
Locate the Product Key for a Full product
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 e-mail message received from an online purchase.
Important Do not lose your Product Key. Keep the packaging, or write the number down and keep it in a safe place. If you do lose your Product Key, read the Microsoft Knowledge Base article How to obtain a new Product Key for an Office program.
If you receive an error message or encounter a problem, visit The 2007 Microsoft Office suites Setup Resource Center for troubleshooting information and how to contact Microsoft Product Support.