The Mac, like any other electronic device, can have problems. One of the most irritating is the fact that the computer is locked or locked preventing it from being used. In this article, we show you how you can solve this problem easily. Close applications that are not responding Your Mac may be blocked initially by a specific application. Sometimes, when an application is being used, it may stop responding due to a failure in a thread that has entered a loop. In these cases, the blockage can lead to the feeling that all the equipment is freezing. In these situations, it is difficult to close the application in question in a normal way, so you must be forced to close. To do this, you only need to follow the following steps: Press the Option + Command + Escape key combination. In the 'Force close' window, select the blocked application. Click on 'Force close' in the bottom left corner of the window. At this point the operating system will stop running the application th...