Mac is “frozen” | Not Responding

IF the mouse is not moving and the keyboard is not working, you Mac is “frozen” or has “crashed. Here’s how to reset the Mac OS 8.0 or later.

1. Pressed the “Command-Option-Escape” .
2. Restart the Mac computer by pressing the Power key or selecting Shut Down on the special menu.
3. If the steps above won’t work, press these keys: Command-Option-Shift-Power.
4. To force the restart: press Command-Control-Power.
5.     If all these won’t work. Unplug the power adapter of the computer from the power outlet.