I'm having problems installing the new iTunes 11. I kept receiving a "component missing" message with the code 45019. When I tried uninstalling everything the support site told me to. When I double checked my cpu drive like it said it showed that It didn't completely remove all the apple files. I tried manually uninstalling and I keep getting an error now saying that I don't have permission to remove these files..... If I don't.... Then who does?? And how do I remove them so I can properly get my iTunes up and running again?