Tying a Windsor Tie…
Windsor: Step One
Cross the wide end over the narrow, then slip the wide end up between the tie and the collar, then simply drop it back down.
Windsor: Step Two
Wrap the wide end behind the narrow end from right to left.
Windsor: Step Three
Bring the wide end in front and over the loop between the collar and tie.
Windsor: Step Four
Wrap the wide end around the narrow part one more time and slip up through the loop again.