diff --git a/src/BlurWindow/BlurWindow.cs b/src/BlurWindow/BlurWindow.cs
index 79658e9..f938d74 100644
--- a/src/BlurWindow/BlurWindow.cs
+++ b/src/BlurWindow/BlurWindow.cs
@@ -206,15 +206,13 @@ public BlurWindow()
                     return;
                 blurBackgroundWindow.Width = b.NewSize.Width;
                 blurBackgroundWindow.Height = b.NewSize.Height;
-                this.Focus();
+                BringWindowToTop(this, blurBackgroundWindow);
             };
             this.StateChanged += (a, b) => 
             {
                 if (blurBackgroundWindow == null)
                     return;
 
-                blurBackgroundWindow.WindowState = this.WindowState;
-
                 if(blurBackgroundWindow.WindowState == WindowState.Maximized)
                 {
                     blurBackgroundWindow.WindowState = WindowState.Normal;
@@ -229,8 +227,6 @@ public BlurWindow()
                 {
                     BeginBlurBackgroundAnimation();
                 }
-
-                this.Focus();
             };
             this.LocationChanged += (a, b) => 
             {
@@ -239,7 +235,7 @@ public BlurWindow()
 
                 blurBackgroundWindow.Left = this.Left;
                 blurBackgroundWindow.Top = this.Top;
-                this.Focus();
+                BringWindowToTop(this, blurBackgroundWindow,true);
             };
 
             InitializeWindows1122H2Style();
@@ -275,11 +271,13 @@ internal async void ShowBlurBackground()
             blurBackgroundWindow.Left = this.Left;
             blurBackgroundWindow.Top = this.Top;
             blurBackgroundWindow.Background = this.Background;
+            blurBackgroundWindow.Title = "BlurBackground";
             this.Background = new SolidColorBrush() { Color = Colors.White, Opacity = 0 };
             blurBackgroundWindow.AllowsTransparency = true;
             blurBackgroundWindow.Show();
             await Task.Delay(200);
-            this.Focus();
+            WindowHelper.HideWindowInSwitcher(blurBackgroundWindow);
+            BringWindowToTop(this, blurBackgroundWindow);
         }
 
         internal void CloseBlurBackground()
@@ -370,5 +368,23 @@ private void RestoreWindow(object sender, ExecutedRoutedEventArgs e)
         {
             SystemCommands.RestoreWindow(this);
         }
+
+        private void BringWindowToTop(Window topWindow,Window bottomWindow,bool isMove = false)
+        {
+            //replace with winapi in some event
+            if(isMove)
+            {
+                this.Focus();
+            }
+            else
+            {
+                IntPtr topWindowPtr = new WindowInteropHelper(topWindow).Handle;
+                IntPtr bottomWindowPtr = IntPtr.Zero;
+                if (bottomWindow != null)
+                    bottomWindowPtr = new WindowInteropHelper(bottomWindow).Handle;
+                WindowHelper.SetTopWindow(topWindowPtr, bottomWindowPtr);
+            }
+
+        }
     }
 }
diff --git a/src/BlurWindow/WindowHelper.cs b/src/BlurWindow/Helpers/WindowHelper.cs
similarity index 57%
rename from src/BlurWindow/WindowHelper.cs
rename to src/BlurWindow/Helpers/WindowHelper.cs
index 3c57ff2..07a1b05 100644
--- a/src/BlurWindow/WindowHelper.cs
+++ b/src/BlurWindow/Helpers/WindowHelper.cs
@@ -1,73 +1,106 @@
-using BlurWindow.Helpers;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Runtime.InteropServices;
-using System.Text;
-using System.Threading.Tasks;
-using System.Windows;
-using System.Windows.Interop;
-
-namespace TianXiaTech
-{
-    internal struct ACCENTPOLICY
-    {
-        public int nAccentState;
-        public int nFlags;
-        public int nColor;
-        public int nAnimationId;
-    }
-
-    internal struct WINCOMPATTRDATA
-    {
-        public int nAttribute;
-        public IntPtr pData;
-        public int ulDataSize;
-    }
-
-    internal class WindowHelper
-    {
-        public const uint WM_SYSTEMMENU = 0xa4;
-        public const uint WP_SYSTEMMENU = 0x02;
-        public const uint WM_NCRBUTTONUP = 0x00A5;
-
-        [DllImport("user32.dll")]
-        public static extern int SetWindowCompositionAttribute(IntPtr hwnd, ref WINCOMPATTRDATA data);
-
-        private const int ACCENT_ENABLE_BLURBEHIND = 3;
-        private const int ACCENT_ENABLE_ACRYLICBLURBEHIND = 4;
-        private const int WCA_ACCENT_POLICY = 19;
-
-        public static void BlurWindow(System.Windows.Window window, int acrylicOpacity = 0)
-        {
-            var winhelp = new WindowInteropHelper(window);
-            bool isGreaterThanWin1122H2 = OsVersionHelper.IsGreaterThanWindows1122H2();
-
-            ACCENTPOLICY policy_Blur = new ACCENTPOLICY();
-            if (isGreaterThanWin1122H2)
-            {
-                policy_Blur.nAccentState = ACCENT_ENABLE_ACRYLICBLURBEHIND;
-                policy_Blur.nColor = (acrylicOpacity << 24) | (0xFFFFFF);
-            }
-            else
-            {
-                policy_Blur.nAccentState = ACCENT_ENABLE_BLURBEHIND;
-                policy_Blur.nColor = 0;
-            }
-
-            policy_Blur.nFlags = 0;
-            policy_Blur.nAnimationId = 0;
-
-            WINCOMPATTRDATA wINCOMPATTRDATA = new WINCOMPATTRDATA();
-            wINCOMPATTRDATA.nAttribute = WCA_ACCENT_POLICY;
-            IntPtr pData = Marshal.AllocHGlobal(Marshal.SizeOf(policy_Blur));
-            Marshal.StructureToPtr(policy_Blur, pData, false);
-            wINCOMPATTRDATA.pData = pData;
-            wINCOMPATTRDATA.ulDataSize = Marshal.SizeOf(policy_Blur);
-
-            SetWindowCompositionAttribute(winhelp.Handle, ref wINCOMPATTRDATA);
-
-            Marshal.FreeHGlobal(pData);
-        }
-    }
-}
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Interop;
+
+namespace BlurWindow.Helpers
+{
+    internal struct ACCENTPOLICY
+    {
+        public int nAccentState;
+        public int nFlags;
+        public int nColor;
+        public int nAnimationId;
+    }
+
+    internal struct WINCOMPATTRDATA
+    {
+        public int nAttribute;
+        public IntPtr pData;
+        public int ulDataSize;
+    }
+
+    internal class WindowHelper
+    {
+        public const uint WM_SYSTEMMENU = 0xa4;
+        public const uint WP_SYSTEMMENU = 0x02;
+        public const uint WM_NCRBUTTONUP = 0x00A5;
+
+        [DllImport("user32.dll")]
+        public static extern int SetWindowCompositionAttribute(IntPtr hwnd, ref WINCOMPATTRDATA data);
+
+        [DllImport("user32.dll")]
+        public static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int X, int Y, int cx, int cy, uint uFlags);
+
+        [DllImport("user32.dll")]
+        public static extern long GetWindowLong(IntPtr hWnd,int nIndex);
+
+        [DllImport("user32.dll")]
+        public static extern long SetWindowLong(IntPtr hWnd,int nIndex,long dwNewLong);
+
+
+        private const int ACCENT_ENABLE_BLURBEHIND = 3;
+        private const int ACCENT_ENABLE_ACRYLICBLURBEHIND = 4;
+        private const int WCA_ACCENT_POLICY = 19;
+
+        private static readonly IntPtr HWND_BOTTOM = (IntPtr)1;
+        private static readonly IntPtr HWND_TOP = (IntPtr)0;
+        private const uint SWP_NOMOVE = 0x0002;
+        private const uint SWP_NOSIZE = 0x0001;
+
+        private const long WS_EX_TOOLWINDOW = 0x00000080L;
+        private const int GWL_EXSTYLE = -20;
+
+        public static void BlurWindow(Window window, int acrylicOpacity = 0)
+        {
+            var winhelp = new WindowInteropHelper(window);
+            bool isGreaterThanWin1122H2 = OsVersionHelper.IsGreaterThanWindows1122H2();
+
+            ACCENTPOLICY policy_Blur = new ACCENTPOLICY();
+            if (isGreaterThanWin1122H2)
+            {
+                policy_Blur.nAccentState = ACCENT_ENABLE_ACRYLICBLURBEHIND;
+                policy_Blur.nColor = acrylicOpacity << 24 | 0xFFFFFF;
+            }
+            else
+            {
+                policy_Blur.nAccentState = ACCENT_ENABLE_BLURBEHIND;
+                policy_Blur.nColor = 0;
+            }
+
+            policy_Blur.nFlags = 0;
+            policy_Blur.nAnimationId = 0;
+
+            WINCOMPATTRDATA wINCOMPATTRDATA = new WINCOMPATTRDATA();
+            wINCOMPATTRDATA.nAttribute = WCA_ACCENT_POLICY;
+            IntPtr pData = Marshal.AllocHGlobal(Marshal.SizeOf(policy_Blur));
+            Marshal.StructureToPtr(policy_Blur, pData, false);
+            wINCOMPATTRDATA.pData = pData;
+            wINCOMPATTRDATA.ulDataSize = Marshal.SizeOf(policy_Blur);
+
+            SetWindowCompositionAttribute(winhelp.Handle, ref wINCOMPATTRDATA);
+
+            Marshal.FreeHGlobal(pData);
+        }
+
+        public static void SetTopWindow(IntPtr hwndTop, IntPtr hwndBottom)
+        {
+            if (hwndBottom != IntPtr.Zero)
+                SetWindowPos(hwndBottom, HWND_BOTTOM, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);
+            SetWindowPos(hwndTop, HWND_TOP, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);
+        }
+
+        public static void HideWindowInSwitcher(Window window)
+        {
+            IntPtr hwnd = new WindowInteropHelper(window).Handle;
+            int exStyle = (int)GetWindowLong(hwnd, GWL_EXSTYLE);
+
+            exStyle |= (int)WS_EX_TOOLWINDOW;
+            SetWindowLong(hwnd, GWL_EXSTYLE, exStyle);
+        }
+    }
+}
diff --git a/src/BlurWindowDemo/MainWindow.xaml.cs b/src/BlurWindowDemo/MainWindow.xaml.cs
index bbe2f98..3ba455e 100644
--- a/src/BlurWindowDemo/MainWindow.xaml.cs
+++ b/src/BlurWindowDemo/MainWindow.xaml.cs
@@ -37,6 +37,8 @@ private void InitializeDemoUI()
                 this.slider_Opacity.Visibility = Visibility.Collapsed;
                 this.lbl_Opacity.Visibility = Visibility.Collapsed;
                 this.Background = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#01000000"));
+                this.cbx_BlurBackground.IsEnabled = false;
+                this.btn_SetBackground.IsEnabled = false;
             }
         }