Fix dupe music easily: https://www.clonefileschecker.com/dup...
Here is how it works:
Open Clone Files Checker installed on your computer
On the left-side of the software, select drive or folder which contains the Windows Media Player music files
Now customize the scan settings and choose the Music option
Start the scan and wait for it to finish it’s hunt for dupe-songs.
See the results; review files, and play songs within the software
After the duplicate songs are identified, the next steps are selection of the files, and after the selection deletion of the files chosen.
You may choose one of the following actions:
Permanently delete all media player duplicates
Move all the duplicate songs to a specific folder