Not sure what you are meaning but think you are saying if you change to Max unchecked, restart Mach then its fine, but if you shut down your computer and restart then when you open Mach iMax mode is checked again. Is that what you are meaning?
If it is then I think you must have something that sets the computer back to original state each time you close down, there are many programmes that can do that and possibly even can be set in recent Windows versions.
Regarding the editor, it is most likely that Mach is looking in the wrong location for notepad, you can change where Mach looks on General Config page.
Hood