ITunes used to work fine under Windows 7. But recently it stopped responding. It won’t launch. I can see that the processes are running, in Task Manager. But iTunes never opens. I have tried a dozen ideas from hardware review forums and I have done all that the Apple site suggests. I have uninstalled and reinstalled iTunes 64 bit and QuickTime and removed and re-installed the Apple Application Support. Can anyone help me find out why this is happening and how to correct it? Please help.