Where can I reset to default settings in Inventor 2010 ? , I kind of messed up trying some configurations , but now I need to set my Inventor to original settings, where can I do that ?
Tools->Application Options->Import.. (button) should work.
Import "Inventor_Default_Options.xml" (shold be in folder "...\Autodesk\Autodesk Inventor [version]\Preferences")
For UI - Right-click ribbon -> Ribbon Appearance->Reset Ribbon
