When I first got MacKeeper I used the duplicates deleter. I tested it on one song and it didnt delete it from my itunes so I thought everything was alright. But after deleting over about 35gb of data tonsss of my songs in iTunes now have the exclamation point and there is no way to get my music back. I had it set to make a copy whenever I imported a song into iTunes. So I ran the recovery part of mackeeper and not one audio/song file was found...awesome. So now im stuck with tons of music missing from my computer and theres no way to get it back but to redownload all the songs and locate them through itunes.