Microsoft Office 2007 must be activated before you can use it after the initial trial period. If you format your computer or uninstall Office 2007, you must reactivate Office when you reinstall it.

Windows Activation helps verify that your copy of Windows is genuine and hasn’t been used on more devices than the Microsoft Software License Terms allow. 1] Are you using the right product key? Make ...

The "Product Activation Failed" error in Microsoft Office arises when the application cannot verify your license or subscription status. This hiccup, hindering full ...