just copied all en-US folders from 10147 to install.wim 10151, then commit .wim and creat iso ) then install and apply reg Code: Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\MUI\PreinstalledLanguages\en-US] [HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\MUI\UILanguages\en-US] "LCID"=dword:00000409 "Type"=dword:00000091
there more easy way..just mount the one build 10147 save all files en-us unmount 10147 mounte the 10151 and copy the files ..and edit lang.ini