diff --git a/QuickLook.Common/ExtensionMethods/WindowInteropHelperExtension.cs b/QuickLook.Common/ExtensionMethods/WindowInteropHelperExtension.cs
new file mode 100644
index 0000000..ad42745
--- /dev/null
+++ b/QuickLook.Common/ExtensionMethods/WindowInteropHelperExtension.cs
@@ -0,0 +1,40 @@
+// Copyright © 2017-2026 QL-Win Contributors
+//
+// This file is part of QuickLook program.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+using System;
+using System.Windows.Interop;
+
+namespace QuickLook.Common.ExtensionMethods;
+
+public static class WindowInteropHelperExtension
+{
+    extension(WindowInteropHelper windowInteropHelper)
+    {
+        public nint EnsureHandleSafe()
+        {
+            try
+            {
+                return windowInteropHelper?.EnsureHandle() ?? IntPtr.Zero;
+            }
+            catch
+            {
+                // Returning 0 is fine, since this error usually only occurs when the window is already closed or being disposed.
+                return IntPtr.Zero;
+            }
+        }
+    }
+}
diff --git a/QuickLook.Common/Helpers/DisplayDeviceHelper.cs b/QuickLook.Common/Helpers/DisplayDeviceHelper.cs
index 08b61b3..ede4181 100644
--- a/QuickLook.Common/Helpers/DisplayDeviceHelper.cs
+++ b/QuickLook.Common/Helpers/DisplayDeviceHelper.cs
@@ -15,6 +15,7 @@
 // You should have received a copy of the GNU General Public License
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+using QuickLook.Common.ExtensionMethods;
 using System;
 using System.Drawing;
 using System.Runtime.InteropServices;
@@ -32,7 +33,7 @@ public static class DisplayDeviceHelper
 
     public static ScaleFactor GetScaleFactorFromWindow(Window window)
     {
-        return GetScaleFactorFromWindow(new WindowInteropHelper(window).EnsureHandle());
+        return GetScaleFactorFromWindow(new WindowInteropHelper(window).EnsureHandleSafe());
     }
 
     public static ScaleFactor GetCurrentScaleFactor()
@@ -79,7 +80,7 @@ public static class DisplayDeviceHelper
     {
         try
         {
-            var hMonitor = MonitorFromWindow(new WindowInteropHelper(window).EnsureHandle(), MonitorDefaults.TONEAREST);
+            var hMonitor = MonitorFromWindow(new WindowInteropHelper(window).EnsureHandleSafe(), MonitorDefaults.TONEAREST);
             return GetMonitorColorProfile(hMonitor);
         }
         catch (COMException ex) when (ex.HResult == unchecked((int)0x80263001))
diff --git a/QuickLook.Common/Helpers/WindowHelper.cs b/QuickLook.Common/Helpers/WindowHelper.cs
index c428170..cc01168 100644
--- a/QuickLook.Common/Helpers/WindowHelper.cs
+++ b/QuickLook.Common/Helpers/WindowHelper.cs
@@ -15,6 +15,7 @@
 // You should have received a copy of the GNU General Public License
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+using QuickLook.Common.ExtensionMethods;
 using QuickLook.Common.NativeMethods;
 using System;
 using System.Diagnostics;
@@ -80,7 +81,7 @@ public static class WindowHelper
         double width,
         double height)
     {
-        var handle = new WindowInteropHelper(window).EnsureHandle();
+        var handle = new WindowInteropHelper(window).EnsureHandleSafe();
 
         // scale the size to the primary display
         TransformToPixels(window, width, height,
@@ -92,7 +93,7 @@ public static class WindowHelper
 
     public static Rect GetWindowRectInPixel(this Window window)
     {
-        var handle = new WindowInteropHelper(window).EnsureHandle();
+        var handle = new WindowInteropHelper(window).EnsureHandleSafe();
 
         User32.GetWindowRect(handle, out User32.RECT nRect);
 
@@ -172,7 +173,7 @@ public static class WindowHelper
     {
         window.Background = Brushes.Transparent;
 
-        var hwnd = new WindowInteropHelper(window).EnsureHandle();
+        var hwnd = new WindowInteropHelper(window).EnsureHandleSafe();
 
         if (!window.AllowsTransparency && HwndSource.FromHwnd(hwnd) is HwndSource hwndSource)
         {
@@ -226,7 +227,7 @@ public static class WindowHelper
             Data = accentPtr
         };
 
-        var hwnd = new WindowInteropHelper(window).EnsureHandle();
+        var hwnd = new WindowInteropHelper(window).EnsureHandleSafe();
         User32.SetWindowCompositionAttribute(hwnd, ref data);
 
         Marshal.FreeHGlobal(accentPtr);
@@ -280,7 +281,7 @@ public static class WindowHelper
         // Mica will handle the color
         window.Background = Brushes.Transparent;
 
-        var hwnd = new WindowInteropHelper(window).EnsureHandle();
+        var hwnd = new WindowInteropHelper(window).EnsureHandleSafe();
 
         if (!window.AllowsTransparency && HwndSource.FromHwnd(hwnd) is HwndSource hwndSource)
         {
@@ -357,4 +358,4 @@ public static class WindowHelper
         public uint GradientColor;
         public readonly int AnimationId;
     }
-}
\ No newline at end of file
+}