In an Educational Environment with a roaming profile for each student, every time Autocad Architecture 2015 is launched on the PCs after a new login, it has to go through the very long "first run" installation (~ 3 min.) to create the prefs in appdata\local and the "my projects-folder" on the user account drive which is redirected to another server. But only with AutoCAD Architecture, and only with version 2015, all other previous versions we´ve used over the last years since 2010 were doing the complete "first run" installation only once to create the above mentioned folders on the account drive, after each new login on another PC the older versions only creates the prefs in appdata\local quickly new, because this will be deleted after each logoff.