i did restore activation of windows 8.1MCE + office 2013 with my back up token+data.dat+Cache folder to C:/Windows/System32/spp/store/2.0 Also i used for office 2013 my back up pkeyconfig.companion.dll + pkeyconfig-office.xrm-ms and copy it to C:/Program Files/Common Files/microsoft shared/OFFICE 15/OfficeSetUpController (dont know if its necessary). But it worked after clean install. now got both Windows 8.1 MCE + Office 2013 activated Regards