It is a scam, that key combination closes the window.
alt f4 alt f4
Alt + F4 to close the active application window, or, if no window is open, shut down Windows
If you have an application open, Alt+F4 will shut it down. If you do not have an application running, it will shut down the computer.
Alt - F4 is the main one, though you can also use Alt - F - X.
Press Alt-F4 or press Alt-F-X to exit Word.
Alt + F4
Alt + F4
Alt+F4 in all applications in some operating systems work as a exit shortcut.
Alt+F4
Alt+f4
alt and f4
Alt f4