Hi all, I installed Office 2010 - Retail and used Retail Key to activate. I also back up 2 files: cache.dat & tokens.dat in case of re-installing Office later. I used the folder Admin from Office Customization Tool (OCT) and put it in Retail. Using Add files function for adding cache.dat & tokens.dat. But no luck. I try to re-install ... it still requires Activate online. I like to make a silent install CD with these 2 files. Does anyone know what's missing step or what I need to do more please ? Thanks a lot in advance.