how to fix itunes when its not opening properly for mac ✌ 2014
Before you install
Be sure that you have the administrator username and password available. You will need both to install iTunes.
Make sure you have enough disk space. Even small applications may require a few hundred megabytes of space to complete the optimization phase of the installation.
Check your hard disk before installing. You might want to use Disk Utility to verify that your disk is OK and that permissions are correct.
Don’t use your computer while installing an update. Though this isn’t required, you may want to avoid using your computer during the update process. You may also want to restart the computer immediately before installing an update. If other applications are running, shut them down to maximize the amount of memory available for the installation.
Find out what version of iTunes you currently have installed.
From the iTunes menu, choose About iTunes.