WMP does not always open when I double click ib an MP3 or WAV file

Often, but not always, when I double click on an MP3 or WAV file Windows
Media Player does not start. I do have WMP set as the default application,
but still it too often does not start automatically. I get no error message,
just nothing. When this happens I do a "Control-Alt-Delete" only to find
Windows Media Player is already open. Then, I must select it, and shut it
down. After I do this, the next time I double click a media file WMP then
functions correctly. It seems that WMP automatically loads at startup, but
only some of the time do I get this effect. Any suggestions on how to stop
this annoyance?

 

Click a shortcut to WMP and it should show up normally.

This behavior typically indicates that a device is attached to the system
and is not interfacing with WMP correctly.

 

I have the same bug.
But in my case, wmp won't open when double clicked on the mp3 file.
But opens when right-clicked and select open with windows media player
Once WMP window is open, then adding to the playlist, opening a new mp3 file
etc works fine.
But once it is closed, then the same procedure is needed to open the file

 

You can try opening mp3s with other tools too, given on the Advanced File Optimizer, as it helps me a lot, i hope it would also help you.