diff --git a/src/modules/peek/Peek.UI/Extensions/HWNDExtensions.cs b/src/modules/peek/Peek.UI/Extensions/HWNDExtensions.cs
index f6b0b94d44..8674e63303 100644
--- a/src/modules/peek/Peek.UI/Extensions/HWNDExtensions.cs
+++ b/src/modules/peek/Peek.UI/Extensions/HWNDExtensions.cs
@@ -4,8 +4,10 @@
 
 using System.Text;
 using Peek.UI.Native;
+using Windows.Foundation;
 using Windows.Win32;
 using Windows.Win32.Foundation;
+using Windows.Win32.Graphics.Gdi;
 
 namespace Peek.UI.Extensions
 {
@@ -47,5 +49,14 @@ namespace Peek.UI.Extensions
         {
             return PInvoke.FindWindowEx(windowHandle, HWND.Null, className, null);
         }
+
+        internal static Size GetMonitorSize(this HWND hwnd)
+        {
+            var monitor = PInvoke.MonitorFromWindow(hwnd, MONITOR_FROM_FLAGS.MONITOR_DEFAULTTONEAREST);
+            MONITORINFO info = default(MONITORINFO);
+            info.cbSize = 40;
+            PInvoke.GetMonitorInfo(monitor, ref info);
+            return new Size(info.rcMonitor.Size.Width, info.rcMonitor.Size.Height);
+        }
     }
 }
diff --git a/src/modules/peek/Peek.UI/Extensions/WindowExtensions.cs b/src/modules/peek/Peek.UI/Extensions/WindowExtensions.cs
index 3e7f65c408..b113003c1f 100644
--- a/src/modules/peek/Peek.UI/Extensions/WindowExtensions.cs
+++ b/src/modules/peek/Peek.UI/Extensions/WindowExtensions.cs
@@ -2,30 +2,18 @@
 // The Microsoft Corporation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+using System.Runtime.InteropServices;
 using Microsoft.UI.Xaml;
-using Windows.Foundation;
 using Windows.Win32;
 using Windows.Win32.Foundation;
 using Windows.Win32.Graphics.Gdi;
+using Windows.Win32.UI.WindowsAndMessaging;
 using WinUIEx;
 
 namespace Peek.UI.Extensions
 {
     public static class WindowExtensions
     {
-        public static Size GetMonitorSize(this Window window)
-        {
-            var hwnd = new HWND(window.GetWindowHandle());
-            var hwndDesktop = PInvoke.MonitorFromWindow(hwnd, MONITOR_FROM_FLAGS.MONITOR_DEFAULTTONEAREST);
-            MONITORINFO info = default(MONITORINFO);
-            info.cbSize = 40;
-            PInvoke.GetMonitorInfo(hwndDesktop, ref info);
-            double monitorWidth = info.rcMonitor.left + info.rcMonitor.right;
-            double monitorHeight = info.rcMonitor.bottom + info.rcMonitor.top;
-
-            return new Size(monitorWidth, monitorHeight);
-        }
-
         public static double GetMonitorScale(this Window window)
         {
             var hwnd = new HWND(window.GetWindowHandle());
@@ -53,5 +41,33 @@ namespace Peek.UI.Extensions
             PInvoke.ShowWindow(new HWND(windowHandle), Windows.Win32.UI.WindowsAndMessaging.SHOW_WINDOW_CMD.SW_SHOW);
             PInvoke.AttachThreadInput(windowThreadProcessId, currentThreadId, false);
         }
+
+        internal static void CenterOnMonitor(this Window window, HWND hwndDesktop, double? width = null, double? height = null)
+        {
+            var hwndToCenter = new HWND(window.GetWindowHandle());
+            var monitor = PInvoke.MonitorFromWindow(hwndDesktop, MONITOR_FROM_FLAGS.MONITOR_DEFAULTTONEAREST);
+            MONITORINFO info = default(MONITORINFO);
+            info.cbSize = 40;
+            PInvoke.GetMonitorInfo(monitor, ref info);
+            var dpi = PInvoke.GetDpiForWindow(new HWND(hwndDesktop));
+            PInvoke.GetWindowRect(new HWND(hwndToCenter), out RECT windowRect);
+            var scalingFactor = dpi / 96d;
+            var w = width.HasValue ? (int)(width * scalingFactor) : windowRect.right - windowRect.left;
+            var h = height.HasValue ? (int)(height * scalingFactor) : windowRect.bottom - windowRect.top;
+            var cx = (info.rcMonitor.left + info.rcMonitor.right) / 2;
+            var cy = (info.rcMonitor.bottom + info.rcMonitor.top) / 2;
+            var left = cx - (w / 2);
+            var top = cy - (h / 2);
+            SetWindowPosOrThrow(new HWND(hwndToCenter), default(HWND), left, top, w, h, SET_WINDOW_POS_FLAGS.SWP_SHOWWINDOW);
+        }
+
+        private static void SetWindowPosOrThrow(HWND hWnd, HWND hWndInsertAfter, int x, int y, int cx, int cy, SET_WINDOW_POS_FLAGS uFlags)
+        {
+            bool result = PInvoke.SetWindowPos(hWnd, hWndInsertAfter, x, y, cx, cy, uFlags);
+            if (!result)
+            {
+                Marshal.ThrowExceptionForHR(Marshal.GetLastWin32Error());
+            }
+        }
     }
 }
diff --git a/src/modules/peek/Peek.UI/MainWindow.xaml.cs b/src/modules/peek/Peek.UI/MainWindow.xaml.cs
index 0db33d20db..76ac8160fc 100644
--- a/src/modules/peek/Peek.UI/MainWindow.xaml.cs
+++ b/src/modules/peek/Peek.UI/MainWindow.xaml.cs
@@ -103,7 +103,9 @@ namespace Peek.UI
         /// <param name="e">PreviewSizeChangedArgs</param>
         private void FilePreviewer_PreviewSizeChanged(object sender, PreviewSizeChangedArgs e)
         {
-            var monitorSize = this.GetMonitorSize();
+            var foregroundWindowHandle = Windows.Win32.PInvoke.GetForegroundWindow();
+
+            var monitorSize = foregroundWindowHandle.GetMonitorSize();
 
             // If no size is requested, try to fit to the monitor size.
             Size requestedSize = e.WindowSizeRequested ?? monitorSize;
@@ -131,7 +133,7 @@ namespace Peek.UI
 
             if (!TitleBarControl.Pinned)
             {
-                this.CenterOnScreen(desiredScaledWidth, desiredScaledHeight); // re-center if not pinned
+                this.CenterOnMonitor(foregroundWindowHandle, desiredScaledWidth, desiredScaledHeight); // re-center if not pinned
             }
 
             this.Show();
diff --git a/src/modules/peek/Peek.UI/NativeMethods.txt b/src/modules/peek/Peek.UI/NativeMethods.txt
index e60c0fb4ab..7cc3a51db2 100644
--- a/src/modules/peek/Peek.UI/NativeMethods.txt
+++ b/src/modules/peek/Peek.UI/NativeMethods.txt
@@ -11,4 +11,8 @@ GetWindowTextLength
 FindWindowEx
 SID_STopLevelBrowser
 GetClassName
-_SVGIO
\ No newline at end of file
+_SVGIO
+MONITORINFO
+GetWindowRect
+SET_WINDOW_POS_FLAGS
+SetWindowPos
\ No newline at end of file