diff --git a/src/core/Microsoft.PowerToys.Settings.UI.Runner/MainWindow.xaml.cs b/src/core/Microsoft.PowerToys.Settings.UI.Runner/MainWindow.xaml.cs
index 4ba0885f06..ff477163a5 100644
--- a/src/core/Microsoft.PowerToys.Settings.UI.Runner/MainWindow.xaml.cs
+++ b/src/core/Microsoft.PowerToys.Settings.UI.Runner/MainWindow.xaml.cs
@@ -80,7 +80,7 @@ namespace Microsoft.PowerToys.Settings.UI.Runner
                 shellPage.Refresh();
             }
 
-            // If the window is open, explicity force it to be shown to solve the blank dialog issue https://github.com/microsoft/PowerToys/issues/3384
+            // XAML Islands: If the window is open, explicity force it to be shown to solve the blank dialog issue https://github.com/microsoft/PowerToys/issues/3384
             if (isOpen)
             {
                 Show();
@@ -90,6 +90,13 @@ namespace Microsoft.PowerToys.Settings.UI.Runner
         private void MainWindow_Closing(object sender, System.ComponentModel.CancelEventArgs e)
         {
             isOpen = false;
+
+            // XAML Islands: If the window is closed while minimized, exit the process. Required to avoid process not terminating issue - https://github.com/microsoft/PowerToys/issues/4430
+            if (WindowState == WindowState.Minimized)
+            {
+                // Run Environment.Exit on a separate task to avoid performance impact
+                System.Threading.Tasks.Task.Run(() => { Environment.Exit(0); });
+            }
         }
     }
 }