Click the "Start" button.
Highlight "Programs."
Select "Windows Media Player."
Click the tab labeled "Burn" inside Windows Media Player.
Drag the protected WMA you want to convert to an unprotected MP3 into the "Burn List."
Put a blank recordable CD (CD-R) into your computer's CD burner.
Click the "Start Burn" button and the protected WMA you want to convert to an unprotected MP3 will be burned to the CD-R.
Click "Rip Settings" when the burning process is complete.
Select the "Format" category and choose "MP3."
Click the "Rip CD" button and the protected WMA will be ripped from the CD and converted to an unprotected MP3.