Well, technically newbies are not allowed to use that tool, you need a special "advanced user" license for it. Now, seriously, doesn't the main related topic: http://www.msfn.org/board/topic/152688-win6x-registry-tweak/ contain what you are looking for? jaclaz If it did I wouldn't ask right? When I type install_wim_tweak.exe /? Cmd closes When I start Install_wim_tweak I get asked to type path to mounted install.wim what path should I type? When I type path to install.wim on mounted iso Install_wim_tweak closes too