In Mac OS X, if you want to close a running program, you just need to press Command + Q in the active window. Then that window will be closed immediately. However, if something happens to that application and it does not respond to the Command + Q shortcut, you cannot stop the program.
In this case, you have to open “Activity Monitor” application to force quit that Mac program. The Activity Monitor is a built-in function in Mac OS X, which let you view running programs and click to stop them. In Windows, it also has the same program with the same feature, called as the Task Manager. If you want to open it, just press Control + Alt + Delete.
But in Mac OS X, you need a few extra steps to open Activity Monitor (aka Mac Task Manager). In order to open this program, hitting Command + Spacebar to launch Spotlight, and then search for “Activity Monitor” to open it.
In the Activity Monitor window, find the program you want to close and then click on the “Force Quit” button. The unresponsive program will be terminated immediately.
You could also to force an application to quit in Mac OS X with Finder. Just simply press and hold the “Shift” key, and then click on Finder menu and select “Force Quit” to force the program to stop. There are a few other ways you could use to stop a program on Mac OS X, but two methods above are good solutions to force any unresponsive applications to stop.
If you have any other good way to stop Mac OS X program, just share with us and we will update the article. In the mean time, if you have any question about this article, feel free to ask by leaving your comment below.