diff --git a/README.md b/README.md
index 88b55f1..a872488 100644
--- a/README.md
+++ b/README.md
@@ -49,7 +49,7 @@ Create, mount and manage in-memory volumes that appear as normal drive letters i
 **UI**
 - Bilingual (English / Simplified Chinese) and light/dark themes, both auto-detected with manual override in Settings, switching instantly without restart
 - At-a-glance disk cards with status badges (read-only, current-TEMP, backing image, password-protected) and a usage bar that turns warning-colored past the high-usage threshold
-- Maximize/restore button on the main window toolbar, alongside minimize and close
+- Main window is freely resizable by dragging its edges, but has no maximize/fullscreen mode
 - About dialog with app version and GitHub link
 
 ### Installation
@@ -344,7 +344,7 @@ This project bundles [WinFsp](https://winfsp.dev/) and [SharpCompress](https://g
 **界面**
 - 双语界面（中文/英文）与浅色/深色主题，均可自动检测或在设置中手动切换，即时生效无需重启
 - 一目了然的磁盘卡片，带状态角标（只读、当前临时目录、是否绑定镜像、密码保护）及使用率超阈值时变色的进度条
-- 主窗口工具栏新增最大化/还原按钮，与最小化、关闭按钮并列
+- 主窗口可通过拖拽边缘自由调整大小，但不支持最大化/全屏
 - 关于对话框，显示应用版本及 GitHub 仓库链接
 
 **命令行**
diff --git a/src/ManagedDrive.App/MainWindow.xaml b/src/ManagedDrive.App/MainWindow.xaml
index 0b8f880..cb3523d 100644
--- a/src/ManagedDrive.App/MainWindow.xaml
+++ b/src/ManagedDrive.App/MainWindow.xaml
@@ -13,6 +13,7 @@
         Title="{DynamicResource Window.Title}"
         Height="480" Width="760"
         MinHeight="320" MinWidth="520"
+        ResizeMode="CanResize"
         WindowStartupLocation="CenterScreen"
         TextElement.Foreground="{DynamicResource AppForeground}"
         TextElement.FontWeight="Regular"
@@ -79,21 +80,6 @@
                             ToolTip="{DynamicResource Tip.Minimize}">
                         <TextBlock Style="{StaticResource IconText}" Text="&#xE921;" FontSize="12"/>
                     </Button>
-                    <Button Style="{StaticResource IconButton}"
-                            Click="MaximizeRestoreButton_Click"
-                            ToolTip="{DynamicResource Tip.MaximizeRestore}">
-                        <TextBlock x:Name="MaximizeRestoreIcon" Text="&#xE922;">
-                            <TextBlock.Style>
-                                <Style TargetType="TextBlock" BasedOn="{StaticResource IconText}">
-                                    <Style.Triggers>
-                                        <DataTrigger Binding="{Binding WindowState, RelativeSource={RelativeSource AncestorType=Window}}" Value="Maximized">
-                                            <Setter Property="Text" Value="&#xE923;"/>
-                                        </DataTrigger>
-                                    </Style.Triggers>
-                                </Style>
-                            </TextBlock.Style>
-                        </TextBlock>
-                    </Button>
                     <Button Style="{StaticResource IconButton}"
                             Click="CloseButton_Click"
                             ToolTip="{DynamicResource Tip.HideToTray}">
diff --git a/src/ManagedDrive.App/MainWindow.xaml.cs b/src/ManagedDrive.App/MainWindow.xaml.cs
index 78027a2..b54cfc1 100644
--- a/src/ManagedDrive.App/MainWindow.xaml.cs
+++ b/src/ManagedDrive.App/MainWindow.xaml.cs
@@ -1,6 +1,3 @@
-using System.Runtime.InteropServices;
-using System.Windows.Interop;
-
 namespace ManagedDrive.App;
 
 /// <summary>
@@ -8,9 +5,6 @@ namespace ManagedDrive.App;
 /// </summary>
 public partial class MainWindow
 {
-    private const uint MonitorDefaultToNearest = 2;
-    private const int WindowsMessageGetMinMaxInfo = 0x0024;
-
     /// <summary>
     /// Initializes the main window and binds the supplied view model.
     /// </summary>
@@ -19,70 +13,23 @@ public MainWindow(MainViewModel viewModel)
     {
         InitializeComponent();
         DataContext = viewModel;
+        StateChanged += MainWindow_StateChanged;
     }
 
+    private void CloseButton_Click(object sender, RoutedEventArgs e) => Close();
+
     /// <summary>
-    /// Hooks the window's message loop so maximizing clamps to the monitor's
-    /// work area instead of its full bounds, which WPF does not do automatically
-    /// for <c>WindowStyle="None"</c> windows and would otherwise cover the taskbar.
+    /// The window supports resizing but not fullscreen; this reverts any attempt to
+    /// maximize (Win+Up, edge-drag snap, double-click on the caption area) back to normal.
     /// </summary>
-    protected override void OnSourceInitialized(EventArgs e)
-    {
-        base.OnSourceInitialized(e);
-
-        if (PresentationSource.FromVisual(this) is HwndSource source)
-        {
-            source.AddHook(WndProc);
-        }
-    }
-
-    [DllImport("user32.dll")]
-    private static extern bool GetMonitorInfo(IntPtr hMonitor, ref MonitorInfo lpmi);
-
-    [DllImport("user32.dll")]
-    private static extern IntPtr MonitorFromWindow(IntPtr hwnd, uint dwFlags);
-
-    private static void WmGetMinMaxInfo(IntPtr hwnd, IntPtr lParam)
-    {
-        var monitor = MonitorFromWindow(hwnd, MonitorDefaultToNearest);
-        if (monitor == IntPtr.Zero)
-        {
-            return;
-        }
-
-        var monitorInfo = new MonitorInfo { cbSize = Marshal.SizeOf<MonitorInfo>() };
-        if (!GetMonitorInfo(monitor, ref monitorInfo))
-        {
-            return;
-        }
-
-        var workArea = monitorInfo.rcWork;
-        var monitorArea = monitorInfo.rcMonitor;
-
-        var minMaxInfo = Marshal.PtrToStructure<MinMaxInfo>(lParam);
-        minMaxInfo.ptMaxPosition.X = workArea.Left - monitorArea.Left;
-        minMaxInfo.ptMaxPosition.Y = workArea.Top - monitorArea.Top;
-        minMaxInfo.ptMaxSize.X = workArea.Right - workArea.Left;
-        minMaxInfo.ptMaxSize.Y = workArea.Bottom - workArea.Top;
-        Marshal.StructureToPtr(minMaxInfo, lParam, fDeleteOld: true);
-    }
-
-    private static IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
+    private void MainWindow_StateChanged(object? sender, EventArgs e)
     {
-        if (msg == WindowsMessageGetMinMaxInfo)
+        if (WindowState == WindowState.Maximized)
         {
-            WmGetMinMaxInfo(hwnd, lParam);
-            handled = true;
+            WindowState = WindowState.Normal;
         }
-
-        return IntPtr.Zero;
     }
 
-    private void CloseButton_Click(object sender, RoutedEventArgs e) => Close();
-
-    private void MaximizeRestoreButton_Click(object sender, RoutedEventArgs e) =>
-        WindowState = WindowState == WindowState.Maximized ? WindowState.Normal : WindowState.Maximized;
-
     private void MinimizeButton_Click(object sender, RoutedEventArgs e) => WindowState = WindowState.Minimized;
 
     private void OverflowBtn_Click(object sender, RoutedEventArgs e)
@@ -94,39 +41,4 @@ private void OverflowBtn_Click(object sender, RoutedEventArgs e)
             btn.ContextMenu.IsOpen = true;
         }
     }
-
-    [StructLayout(LayoutKind.Sequential)]
-    private struct MinMaxInfo
-    {
-        public Point ptReserved;
-        public Point ptMaxSize;
-        public Point ptMaxPosition;
-        public Point ptMinTrackSize;
-        public Point ptMaxTrackSize;
-    }
-
-    [StructLayout(LayoutKind.Sequential)]
-    private struct MonitorInfo
-    {
-        public int cbSize;
-        public Rect rcMonitor;
-        public Rect rcWork;
-        public uint dwFlags;
-    }
-
-    [StructLayout(LayoutKind.Sequential)]
-    private struct Point
-    {
-        public int X;
-        public int Y;
-    }
-
-    [StructLayout(LayoutKind.Sequential)]
-    private struct Rect
-    {
-        public int Left;
-        public int Top;
-        public int Right;
-        public int Bottom;
-    }
 }
\ No newline at end of file