To activate Office by telephone, you can call the numbers for your specific country/region listed in this. When you start your Office 2007 programs for the first time after installation, you are prompted to enter your Product Key, if you have not already done so during Setup. For more information about your Product Key, see For additional troubleshooting information, visit the site. Activate my Office 2007 programs Activate Office 2007 over the Internet or by phone When you enter your valid Product Key, the Activation Wizard starts automatically and gives you two choices on how to proceed: • Activate by using the Internet The Activation Wizard automatically contacts the Microsoft licensing servers through your Internet connection.