So we have the ISO which contains all needed files to do a install. Sometimes they don't differ much from the different Editions right? Does that ISO simply contain some sort of configuration file that differs for each Edition? I see you can create ISOs with multiple editions, by that logic is there already simply multiple configuration files included in the ISO that normally go unused? Could we for example, take a LTSB "config file" and place it into a updated Feb 2016 ISO? Would the installer then try and install LTSB with the more recent Feb 2016 files? I know we can remove things from a (Pro etc) ISO to make it LTSB*ish*, but I'm wondering if there is another way to go about it. LTSB is appealing because of the lack of various components, the major downside is lack of bug fixes and such. I guess the core of this question is what makes a Pro edition installer Pro and what makes it Education etc.