OS X El Capitan: iTunes Not Working? Fix

If you have been having problems with iTunes since updating to OS X El Capitan you may not be alone. Several Mac users have reported that iTunes freezes up and becomes unresponsive. User eported problems include that iTunes:

• won’t open
• stops responding
• freezes
• causes CPU usage to spike
• update makes the menu items not clickable
• is very slow
• gives unknown error 42037

Fix Mac iTunes:

Try the following steps until your problem is fixed:

1-Restart your Mac. Simply restarting your Mac may fix this issue. To do this, choose “Restart…” from the Apple menu.

2-A third party plug-in or script may cause this. Start iTunes in Safe Mode to troubleshoot this problem. Start iTunes in Safe Mode on your Mac, here is how:

• Hold down the Option and Command keys on your keyboard while you launch iTunes. iTunes will start in Safe Mode. You will see a pop up message saying “iTunes is running in safe mode. Visual plug-ins you have installed have been temporarily disabled.” Click “Continue”. If iTunes is working properly without any issue in safe mode, a third party iTunes add-on is causing this problem. iTunes add-ons can be found in this folder: ~/Library/iTunes/iTunes Plug-ins/. To find out the problematic add-on, close iTunes, and move the add-ons to your desktop one at a time temporarily. You may also want to contact the developers of your plug-ins. Maybe, there are updates that you can install.

3-Make sure that you have the latest version of  iTunes installed. If you do not, please update iTunes. You can update iTunes in a few minuets. Launch iTunes then, from the menu, select iTunes > Check for Updates.

4-Turn off Wi-Fi. Then launch iTunes and sign out by going to iTunes menu > Store > Sing Out then quit iTunes. Then turn on Wi-Fi and relaunch iTunes.

5-Remove iTunes and re-install again. Here is how:

• Launch Terminal. The Terminal app is located in the Utilities folder (Applications folder).
• Use thisTerminal command: cd /Applications/
• Then this command: sudo rm -rf iTunes.app/  
• Enter your password when/if you are asked, then press the Return key.

• This command will remove iTunes from your Mac immediately.
• Now reinstall iTunes. Simply go to the iTunes download page, and download the installer to your hard drive and after your download, then double click the itunes.dmg file to install.

See also: Mac White Screen: How To Fix Your Mac That Won’t Turn On