It happened to me just this morning. I was using the Chrome browser on my iMac, and it kept popping up a message asking me if I wanted to leave the page or stay on the page. No matter which I clicked, the message kept popping back up again and again, so essentially I had a frozen computer program. I couldn’t get it to QUIT in any of the normal ways, and I hate to just unplug the computer.
If you have this kind of problem on a Macintosh, the solution is simple. Go to the apple icon in the upper left part of your screen and click it to see the drop-down menu. Select FORCE QUIT. This will pop up a list of all the programs you have open, and you can select which one you want to force closed. It worked like a charm and kept me from having to close my other programs.
If you’re using a Windows operating system, the trick is to press and hold three keys in this order: Ctrl + Alt + Del. This brings up the Windows Task Manager. Make sure the Applications tab is showing, and you will see a list of the Applications you have open and running. Find the program you want to exit from and single left click on it to select. Press the END TASK button. A message box will appear: “Program is not responding. End task?” Click END TASK again and the program should close within a few seconds.
NOTE: Hitting the Ctrl-Alt-Delete buttons repeatedly, or when the task manager is open, will cause the computer to shut down and restart.
Rarely, when none of the above actions work when you have a frozen computer program, you have to resort to a “forced shutdown” where you literally force your computer to shut off. Hold the power button in for about 10 to 15 seconds, and the computer should power down. You will lose any unsaved work that was open.
The very last resort is to unplug the computer from the wall plug. You will lose any unsaved work that you had opened. This step does carry risk. When a computer unexpectedly loses power, the sudden shutdown has the potential to damage the hard disk, but sometimes that’s the only way to force a frozen computer to shut down.