Ctrl+F4 is a shortcut key most often used to close a tab or window within a program. If you want to close all tabs and windows and the program use the Alt+F4

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support@cumbriacomputerrepairs.co.ukCtrl+F4 is a shortcut key most often used to close a tab or window within a program. If you want to close all tabs and windows and the program use the Alt+F4