Hey all ! I'm going to format my 2011 iMac for the first time. I know how to do this thanx to this forum, but there is one thing I'm really scared of, and that's to loose my iTunes library. I know how to backup my files to an external HD, but I'm afraid that when I put the files back, my iTunes won't find them or something.. I had this problem when using Windows... I have my music in the Music directory, sorted out. In that dir is also the iTunes dir, and in there is the library, right? And also my purchased music and apps from my iPhone.. Now, my question is, how can I make sure that if I'm going to format my iMac, and after that, putting back my backup'd files, that iTunes will be exactly like it was before? Hope someone gets my problem, and appreciate the help !!