
If you know exactly which app you need to force quit, you can also use Activity Monitor for this task: To kill the process, type "kill -9" followed by the PID number.

Open Activity Monitor through Spotlight or iStat Menus.
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How to force quit on Mac with a keyboard shortcut If you need to force quit the app that is currently open, you can use the keyboard shortcut.

You should try to run them all, but the essential one is called “Run Maintenance Scripts.” You will see a list of tasks that CleanMyMac X would suggest you perform to optimize your Mac. Alternatively, choose another specific maintenance script such as Speed Up Mail or Reindex Spotlight and click Run. When it's finished, click Select Tasks to return to the list of maintenance tasks. If you're having problems with Mail, repeat step 3, but this time click the checkbox next to Speed Up Mail. Likewise, if Spotlight is running slowly, run the Reindex Spotlight task.īe careful when killing a background process with Activity Monitor and, if not sure, leave it alone or search online for its exact role in your system. Otherwise, you might risk causing problems for your macOS. Generally, background processes don't tend to consume significant RAM or CPU cycles, so if you spot one that does, it has probably got into trouble. Kill it using the X in the Activity Monitor toolbar. While Force Quit will fix the problem, it’s a temporary solution.
