[header] How to remove an item from system preferences on a mac [title] Open the system preferences menu. [step] To do this, click on the " system preferences " icon in the dock. If you have removed this icon from the dock, you can also access the menu by clicking on the " apple " icon in the task bar, and selecting " system preferences " from the drop-down menu. 
[title] Right-click on the unwanted item. [step] Hold your mouse over the item you want to remove, and either right-click or control-click on it.