Well I faced some problems with 3dsmax plug ins (Fumefx, Thinking particles) while loading the program or using the tool and it has to do with Windows permission for programs to access the C drive and edit files there, and it will throw you an error message asking for elevation or sth like that.
So this post is for you and me (as a reference in case I forgot how to do it), so it goes like this:
-Press keys “Windows Key + R”, type regedit
-Locate HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Update the EnableLUA value to 0 (turn if off)
-Restart Windows.