To unfreeze a Mac computer, press the Command, Option and Escape keys together to display the Force Quit Applications menu. Highlight the applications that are causing the computer to freeze, and click the Force Quit button. If the computer does not unfreeze, press and hold the power button until the computer shuts off.Continue Reading
Open the Force Quit Applications menu by pressing the Command, Option and Escape keys together. This display a list of all applications that are running on the computer.
From the list of running applications, highlight the ones that are consuming excessive resources or apparently causing the computer to freeze, and press the Force Quit button. Click the Force Quit button when the confirmation prompt pops up. Continue closing applications until the computer unfreezes. Close the Force Quit Applications pop-up window by clicking on the X in the top-left corner of the window.
If the computer does not unfreeze, press and hold the power button down until the machine turns off. If the computer does not turn off, unplug the power cord from its electrical outlet. Plug the power cable back in, and press the power button to restart the computer.