Need to delete song from my limewire library but still need to delete from my hard disk?

I have songs that need to be deleted from limewiry library, but when I tried it says it is shares with other programs, and went to my computer, c drive and still can delete them

Need to delete song from my limewire library but still need to delete from my hard disk?
free up space in your control panel. it will get rid of all your useless files on your computer for more space (along with those songs).