If the program you are running has three icons in the top-right corner of the window (like the ones shown in the screenshot), click the X icon to close the program.
- Windows 7
- Windows 8(.1)
- Windows 10
Note: Some programs might be only minimized if you click the X icon and they will continue running in the background. You need to look them up in the notification area to make sure that they are fully closed. Check the other solution to learn how.
If a program became unresponsive and you weren't able to quit it via any other method, shut it down. This method is more helpful to laptop users than to desktop computer users, because desktop computers have a dedicated restart button.
To force-shut-down the computer, press and hold the Power On/Off button until the cooling fans stop working (which should be in around 15-20 seconds after you have pressed the power button). Turn it back on after a minute or two.