两种方式

            
        public static void ApplicationRestart()
        {
            mutex.Close();
            Application.Exit();
            Application.Restart();
            Environment.Exit(0);
        }

        public static void ProcessRestart()
        {
            mutex.Close();
            Process.Start(Assembly.GetExecutingAssembly().Location);
            Application.Exit();
            Environment.Exit(0);
        }

关键是 Environment.Exit(0);

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