I was having problems with installing the newest version of iTunes. It kept saying there was an error with Quicktime and when I deleted and tried to reinstall it I got a similar error. So I deleted iTunes and Quicktime and installed an older version of Quicktime. Then I was able to install iTunes, but now that it is installed when I try to open it nothing happens. If I check the Windows Task Manager it isn't in the applications section but it is in the processes. I can get other programs to start, but I can't get the control panel or my computer to open either. I've restarted my computer several times and I have no idea what to do.