Windows Media Player is a powerful media player that can be used to play music, videos, and pictures. It can be used to delete duplicates in your library. To delete duplicates in Windows Media Player for Windows 7, follow these steps:

  1. Open Windows Media Player and click the three lines in the top left corner of the screen.
  2. On the left side of the screen, click on Duplicate Files.
  3. In the Duplicate Files window, select all of the files that you want to delete and click on Delete.
  4. Click on OK to confirm your deletion of duplicates in Windows Media Player for Windows 7.