This is what it started saying to me. I uninstalled itunes and quicktime and now it says "The installation of Quicktime did not complete successfully. ITunes requires Quicktime. I cannot find anything on the ITunes support to help me. PLEASE someone tell me what to do. IT is driving me NUTS!!
Okey, i see, i think you can redownload the Quicktime and reinstall it if you any questions,post here Good luck