Activation: After installation, Office applications prompt me for a product key.
Some users have reported that after successfully installing Microsoft Office, they are prompted to enter a product key when they run one of the newly-installed Office applications. Upon entering the product key you used to install Office, you get an error that "You have not entered a valid product key".
This is a known issue with Microsoft and is documented in their online Knowledge Base:
Office 2000 and Office XP - OFF: You Are Prompted for the Product Key When You Open an Office Program (KB Article 321346)
This problem occurs when you install Microsoft Office on a system on which an Office family product (e.g. Word, Access, Works Suite, etc.) has already been installed. This frequently occurs when you purchase your computer from an OEM (Original Equipment Manufacturer) such as Dell or HP that has pre-installed Microsoft Works Suite or Microsoft Office. When you install the Office suite, you create a conflict between the key you entered during installation and the product key already in the system from the pre-installed product.
To resolve this issue, uninstall Office, then uninstall the application or suite that was already on your computer. You should then be able to reinstall Office without difficulty.
If you have any questions about which products may be conflicting, or if you require any other technical assistance, you should contact the ITS Help Desk for technical support by calling (512) 475-9400.
Last updated October 22, 2010 @ 3:45 pm