Activate my Office 2007 programs Activate Office 2007 over the Internet or by phone 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.įor more information about your Product Key, see Find your product key for Office 2007 For additional troubleshooting information, visit the Support site. To activate Office by telephone, you can call the numbers for your specific country/region listed in this article. Important: When you select the option to activate Office by telephone, you might receive this error: Telephone activation is no longer supported for your product.