public IEnumerable <Display> Get()
        {
            var machineKeyHasChanged = _machineKeyHandler.CheckIfMachineKeyHasChanhed();

            _machineKeyHandler.UpdateMachineKey();
            var serializedDispalys = _settingsHandler.GetDisplays();
            var savedDisplays      = Deserialize(serializedDispalys);
            //TODO: for testing purposes move Screen.AllScreens to separate class
            var presentDisplays = Screen.AllScreens.Select(screen => new Display(screen.DeviceName, screen.Bounds.X, screen.Bounds.Y, screen.Bounds.Width, screen.Bounds.Height, true));

            if (!machineKeyHasChanged && savedDisplays != null && savedDisplays.Count() == presentDisplays.Count())
            {
                return(savedDisplays);
            }
            return(presentDisplays);
        }