Hi all, I've just installed MS Office 2007 Ultimate and used Technet key from a friend. I wonder if anyone know how to back up activation files in order to restore later on in case re-install windows 7 ??? I mean that after reinstalling Windows 7, I do not have to activate Office 2007 again because the Technet Key limits the times of activation. Thanks a lot for all your info and help in advance. Have a good day !