Q: Itunes will not force quit and has no process in activity monitor

Hi escalinci,

It looks like your iTunes app is freezing up an unable to be forced to quit. No worries! Try updating your Mac to the latest release of OS X and see if that fixes the issue. If it does not, you can boot up in safe mode then try launching the app and quitting normally. Reinstalling your iTunes app over the current version can resolve this as well for you. The links below can assist you with the procedures mentioned.

Update the software on your Mac 

OS X El Capitan: Start up in safe mode

Reinstall iTunes

These links should have your iTunes app performing as expected in a jiffy! Thanks for using Apple Support Communities to post your question.

Have a great day.

If the OS X update did not resolve the issue, please proceed with the reinstallation of iTunes. You may also want to boot up in safe mode as well. See if this allows your iTunes app to launch.

Thanks!