diff --git a/EZPPClient Installer/MainWindow.xaml.cs b/EZPPClient Installer/MainWindow.xaml.cs
index 92f536b..c918af3 100644
--- a/EZPPClient Installer/MainWindow.xaml.cs	
+++ b/EZPPClient Installer/MainWindow.xaml.cs	
@@ -38,7 +38,11 @@ namespace EZPPClient_Installer
     {
       var alreadyRunning = System.Diagnostics.Process.GetProcessesByName(System.IO.Path.GetFileNameWithoutExtension(System.Reflection.Assembly.GetEntryAssembly().Location)).Count() > 1;
       if (alreadyRunning)
+      {
         this.Close();
+        return;
+      }
+       
       Instance = this;
       InitializeComponent();
       Init();