I'm on my very first Mac, a MacBook Pro with Retina Display. I'm trying to download iTunes 10.7. I currently am using iTunes 10.6.3. I've tried updating two ways: 1) Software Update- Under the Apple logo in Finder 2) Check For Updates in iTunes App When I use Software Update I am getting an error photo below When I use iTunes App I am told iTunes 10.6.3 is the current version photo below I guess i can go to the iTunes webpage and download from there. But will that clean install erase all my music from my drive?