How to unfreeze a frozen screen on any Windows version?

There are 3 methods:

Method 1.

Press ESC key once or twice. This method rarely works but there is still a chance.

Method 2.

Press Ctrl+Alt+Del combination and choose Start Task Manager. The Task Manager lists the names of currently running programs, including the one that’s not responding.

 On the Processes tab, click the name of the program which stuck and then click the End Task button. You lose any unsaved work in that program, of course, but you should be used to that. Sometimes it can be explorer.exe program. End this program then go to File > New task. Write explorer.exe and hit enter.

Method 3.

If the previous methods didn't work, shut down computer by pressing its power buton for 3-5 seconds.