With the help of Ctrl-Alt-Del, you can achieve a variety of purposes on a Windows operating system based machine, most notable of which is the ability to open up the Task Manager window, which allows one to force-shut programs that are not responding.
Windows users will be well aware of the benefits of this operation, and it is possible to get the same results on a MacBook as well.
This article will tell you about the ‘Control Alt Delete’ sequence for Mac.