public KeyManager()
        {
            InitializeComponent();
            SavingFeatures sf = new SavingFeatures();

            key = sf.keyGenerator();
            metroTextBox1.Text = key;
        }
        public MainWindow()
        {
            InitializeComponent();
            SavingFeatures sf = new SavingFeatures();

            keys = sf.keyGenerator();
            fileLoadSettings();
        }