Once you copy music into a widows media player how do you delete duplicates ?

You can look at special computer software for extracting duplicate tracks like Music Comparer :
http://AudioComparer.com

Right click on them and you also should possess the options associated with either deleting them through your library or your pc if you have duplicate songs files.

by killing off the husbands from the widows.I sooo want to see your widow advertising player.I bet most people are dying to obtain one.