private static void KillAllWindows() { var rootElement = AutomationElement.RootElement; var winCollection = rootElement.FindAll(TreeScope.Children, Condition.TrueCondition); foreach (AutomationElement element in winCollection) { Console.WriteLine(element.Current.Name); if (element.Current.Name == AppTitle) { var id = element.Current.ProcessId; Application.Attach(id).Kill(); } } }