Some apps are installed by Apple and cannot be deleted by users. Apps like System Preferences, Messages, Photos, Notes, Pages, and Calendar are preinstalled and cannot be removed from your Mac.
You can tell an app is selected if its name is highlighted in Finder.
In the top right corner of your Mac screen, find the File tab. Click File and locate the option to Move to trash near the bottom of the pop-up menu. By choosing Move to trash, the selected app will be deleted from Finder and moved to your Mac trash. You can also delete an app by hold-clicking on it in Finder, and then dragging it with your mouse to the trashcan icon in the dock. Deleted apps still in the Trash will continue to take up storage space on your Mac. Empty your trash by clicking the trashcan icon on the app dock and selecting the Empty option in the top right corner of the window. [2] X Research source
Hover over the different colored blocks in this graph to see what category of content is taking up what amount of storage space. These categories include Photos, Apps, Messages, and the Operating System.
After pressing Delete. . . , you will be asked to confirm your decision to delete an app in a pop-up message. In this message you can also see the amount of storage that will be freed up on your Mac by deleting this app.
The default position of the dock on Mac computers is at the bottom of the desktop screen. You can change the placement of the dock to be on the left or right side of your desktop by going to System Preferences> Dock & Menu bar > Position on screen. [3] X Research source
If you are having trouble seeing apps in your dock, you can change the size of the app icons in System Preferences > Dock & Menu bar > Size. You can also change your settings so that hovering over an app in the dock will magnify its size for easier visibility. Turn on this feature in System Preferences > Dock & Menu bar > Magnification.
Sometimes, apps are “open” even if you cannot see it opened in your desktop. You can tell if an app is open by checking if there is a black dot underneath the app icon (if the dock is on the bottom of your screen), or next to the app icon (if your dock is on the side of your screen).
