Hi all!! I slipstreamed the useful Simplix Pack into my Windows 7 SP1 iso. The editions I updated are: Home Premium and Professional. After that I deleted the other indexes with this command: Code: Dism /Delete-Image /ImageFile:install.wim /Index:1 Dism /Delete-Image /ImageFile:install.wim /Index:3 but, as Technet notice: How can I optimize the space of the wim file?? The "/optimize" option does not work, it is an unknow command. And, last question, why the LAST CHANGE during install, selecting the Edition, is still 2010 ??