text: You can't make a folder named CON or con, because of Windows limitation.I don't know the exact cause but probably the syntex or name is used by some system process and files.\n  Well if you wanna chalenge sombody do this-\nTurn your caps lock on and tell 'em to rename a folder by CON, they won't be able to do..Now with a quick succession or after tilting your keyboard type C0(its numeric zero!)N and what you'll see on your screen is C0N.. have fun.. :)