diff --git a/GoPro Video Recovery/Views/MainWindow.xaml.cs b/GoPro Video Recovery/Views/MainWindow.xaml.cs
index caadf54..9c709bf 100644
--- a/GoPro Video Recovery/Views/MainWindow.xaml.cs	
+++ b/GoPro Video Recovery/Views/MainWindow.xaml.cs	
@@ -1,4 +1,5 @@
-using System.Windows;
+using System.ComponentModel;
+using System.Windows;
 
 namespace GoPro_Video_Recovery
 {
@@ -11,5 +12,13 @@ public MainWindow()
         {
             InitializeComponent();
         }
+
+        protected override void OnClosing(CancelEventArgs e)
+        {
+            if (((MainPageViewModel)DataContext).Running)
+                e.Cancel = true;
+            else
+                base.OnClosing(e);
+        }
     }
 }
\ No newline at end of file