I'm just wondering, do you solved the issue with Drive letter preassignment (to remind, it works perfect, except as it also assign the S letter to System partition what make it visible and not hidden)? Everything else works perfect, great tool. P.S. Is it possible to add (much) more tweaks (it is lot of the available sources), as it can make it really highly customizable tool for every installation (more personal targeted tool), e.g. change users drive, public drive, system wide right click extender, etc. (so, see e.g. Win Toolkit tweak & service menu)? Run; RunOnce, RunOnceEx and FirstLoad (Active Setup Component - it execute just once after first login load) will be nice to be added.