Click the Apple icon in the top left corner of the screen. 2. Click Force Quit in the dropdown menu. Quick tip: You can also press Command + Alt + Escape to open the Force Quit menu.
Why is my Mac stuck on the spinning wheel?
Every app on your Mac has a so-called window server. When an app receives more events than it can process, the window server automatically shows you the spinning ball. It usually takes about 4 seconds for the app to decide that it’s non-responsive.
