diff --git a/v2rayN/Directory.Build.props b/v2rayN/Directory.Build.props
index 7d8defbd..01ab2f78 100644
--- a/v2rayN/Directory.Build.props
+++ b/v2rayN/Directory.Build.props
@@ -8,7 +8,6 @@
         <TargetFramework>net10.0</TargetFramework>
         <TargetLatestRuntimePatch>true</TargetLatestRuntimePatch>
         <CheckForOverflowUnderflow>true</CheckForOverflowUnderflow>
-        <NoWarn>CA1031;CS1591;NU1507;CA1416;IDE0058;IDE0053;IDE0200</NoWarn>
         <Nullable>annotations</Nullable>
         <ImplicitUsings>enable</ImplicitUsings>
         <Authors>2dust</Authors>
diff --git a/v2rayN/ServiceLib/Common/Utils.cs b/v2rayN/ServiceLib/Common/Utils.cs
index c0d8816d..2824bd83 100644
--- a/v2rayN/ServiceLib/Common/Utils.cs
+++ b/v2rayN/ServiceLib/Common/Utils.cs
@@ -1114,12 +1114,14 @@ public class Utils
 
     #region Platform
 
+    [SupportedOSPlatformGuard("windows")]
     public static bool IsWindows() => OperatingSystem.IsWindows();
 
     public static bool IsLinux() => OperatingSystem.IsLinux();
 
     public static bool IsMacOS() => OperatingSystem.IsMacOS();
 
+    [UnsupportedOSPlatformGuard("windows")]
     public static bool IsNonWindows() => !OperatingSystem.IsWindows();
 
     public static string GetExeName(string name)
@@ -1214,6 +1216,16 @@ public class Utils
     }
 
     public static bool SetUnixFileMode(string? fileName)
+    {
+        if (IsWindows())
+        {
+            return false;
+        }
+        return SetUnixFileModeInternal(fileName);
+    }
+
+    [UnsupportedOSPlatform("windows")]
+    private static bool SetUnixFileModeInternal(string? fileName)
     {
         try
         {
diff --git a/v2rayN/ServiceLib/Common/WindowsUtils.cs b/v2rayN/ServiceLib/Common/WindowsUtils.cs
index 6cd47f0a..5792dcec 100644
--- a/v2rayN/ServiceLib/Common/WindowsUtils.cs
+++ b/v2rayN/ServiceLib/Common/WindowsUtils.cs
@@ -2,6 +2,7 @@ using Microsoft.Win32;
 
 namespace ServiceLib.Common;
 
+[SupportedOSPlatform("windows")]
 internal static class WindowsUtils
 {
     private static readonly string _tag = "WindowsUtils";
diff --git a/v2rayN/ServiceLib/GlobalUsings.cs b/v2rayN/ServiceLib/GlobalUsings.cs
index 9d311324..6e051d80 100644
--- a/v2rayN/ServiceLib/GlobalUsings.cs
+++ b/v2rayN/ServiceLib/GlobalUsings.cs
@@ -8,6 +8,7 @@ global using System.Reactive.Disposables;
 global using System.Reactive.Linq;
 global using System.Reflection;
 global using System.Runtime.InteropServices;
+global using System.Runtime.Versioning;
 global using System.Security.Cryptography;
 global using System.Text;
 global using System.Text.Encodings.Web;
diff --git a/v2rayN/ServiceLib/Handler/AutoStartupHandler.cs b/v2rayN/ServiceLib/Handler/AutoStartupHandler.cs
index bc86cd7f..e40af63f 100644
--- a/v2rayN/ServiceLib/Handler/AutoStartupHandler.cs
+++ b/v2rayN/ServiceLib/Handler/AutoStartupHandler.cs
@@ -41,6 +41,7 @@ public static class AutoStartupHandler
 
     #region Windows
 
+    [SupportedOSPlatform("windows")]
     private static async Task ClearTaskWindows()
     {
         var autoRunName = GetAutoRunNameWindows();
@@ -53,6 +54,7 @@ public static class AutoStartupHandler
         await Task.CompletedTask;
     }
 
+    [SupportedOSPlatform("windows")]
     private static async Task SetTaskWindows()
     {
         try
@@ -82,6 +84,7 @@ public static class AutoStartupHandler
     /// <param name="fileName"></param>
     /// <param name="description"></param>
     /// <exception cref="ArgumentNullException"></exception>
+    [SupportedOSPlatform("windows")]
     public static void AutoStartTaskService(string taskName, string fileName, string description)
     {
         if (taskName.IsNullOrEmpty())
diff --git a/v2rayN/ServiceLib/Handler/SysProxy/ProxySettingWindows.cs b/v2rayN/ServiceLib/Handler/SysProxy/ProxySettingWindows.cs
index 8dc2f335..614437d7 100644
--- a/v2rayN/ServiceLib/Handler/SysProxy/ProxySettingWindows.cs
+++ b/v2rayN/ServiceLib/Handler/SysProxy/ProxySettingWindows.cs
@@ -2,6 +2,7 @@ using static ServiceLib.Handler.SysProxy.ProxySettingWindows.InternetConnectionO
 
 namespace ServiceLib.Handler.SysProxy;
 
+[SupportedOSPlatform("windows")]
 public static class ProxySettingWindows
 {
     private const string _regPath = @"Software\Microsoft\Windows\CurrentVersion\Internet Settings";
diff --git a/v2rayN/ServiceLib/Handler/SysProxy/SysProxyHandler.cs b/v2rayN/ServiceLib/Handler/SysProxy/SysProxyHandler.cs
index 21453591..c525da29 100644
--- a/v2rayN/ServiceLib/Handler/SysProxy/SysProxyHandler.cs
+++ b/v2rayN/ServiceLib/Handler/SysProxy/SysProxyHandler.cs
@@ -88,6 +88,7 @@ public static class SysProxyHandler
         }
     }
 
+    [SupportedOSPlatform("windows")]
     private static async Task SetWindowsProxyPac(int port)
     {
         var portPac = AppManager.Instance.GetLocalPort(EInboundProtocol.pac);
diff --git a/v2rayN/ServiceLib/Manager/CoreManager.cs b/v2rayN/ServiceLib/Manager/CoreManager.cs
index c309680a..41d2343b 100644
--- a/v2rayN/ServiceLib/Manager/CoreManager.cs
+++ b/v2rayN/ServiceLib/Manager/CoreManager.cs
@@ -8,6 +8,7 @@ public class CoreManager
     private static readonly Lazy<CoreManager> _instance = new(() => new());
     public static CoreManager Instance => _instance.Value;
     private Config _config;
+    [SupportedOSPlatform("windows")]
     private WindowsJobService? _processJob;
     private ProcessService? _processService;
     private ProcessService? _processPreService;
diff --git a/v2rayN/ServiceLib/Services/WindowsJobService.cs b/v2rayN/ServiceLib/Services/WindowsJobService.cs
index ffd4a36a..5bc8f276 100644
--- a/v2rayN/ServiceLib/Services/WindowsJobService.cs
+++ b/v2rayN/ServiceLib/Services/WindowsJobService.cs
@@ -3,6 +3,7 @@ namespace ServiceLib.Services;
 /// <summary>
 /// http://stackoverflow.com/questions/6266820/working-example-of-createjobobject-setinformationjobobject-pinvoke-in-net
 /// </summary>
+[SupportedOSPlatform("windows")]
 public sealed class WindowsJobService : IDisposable
 {
     private nint handle = nint.Zero;
diff --git a/v2rayN/v2rayN.Desktop/Common/QRCodeAvaloniaUtils.cs b/v2rayN/v2rayN.Desktop/Common/QRCodeAvaloniaUtils.cs
index 90f60c7f..ba416e71 100644
--- a/v2rayN/v2rayN.Desktop/Common/QRCodeAvaloniaUtils.cs
+++ b/v2rayN/v2rayN.Desktop/Common/QRCodeAvaloniaUtils.cs
@@ -23,6 +23,7 @@ public partial class QRCodeAvaloniaUtils
         }
     }
 
+    [SupportedOSPlatform("windows")]
     private static byte[]? CaptureScreenWindows()
     {
         var hdcScreen = IntPtr.Zero;
diff --git a/v2rayN/v2rayN.Desktop/GlobalUsings.cs b/v2rayN/v2rayN.Desktop/GlobalUsings.cs
index 9c28c767..558852d2 100644
--- a/v2rayN/v2rayN.Desktop/GlobalUsings.cs
+++ b/v2rayN/v2rayN.Desktop/GlobalUsings.cs
@@ -5,6 +5,7 @@ global using System.IO;
 global using System.Linq;
 global using System.Reactive.Disposables.Fluent;
 global using System.Reactive.Linq;
+global using System.Runtime.Versioning;
 global using System.Text;
 global using System.Threading;
 global using System.Threading.Tasks;
diff --git a/v2rayN/v2rayN.Desktop/Manager/HotkeyManager.cs b/v2rayN/v2rayN.Desktop/Manager/HotkeyManager.cs
index f803c538..a79573d6 100644
--- a/v2rayN/v2rayN.Desktop/Manager/HotkeyManager.cs
+++ b/v2rayN/v2rayN.Desktop/Manager/HotkeyManager.cs
@@ -8,6 +8,7 @@ public sealed class HotkeyManager
     private static readonly Lazy<HotkeyManager> _instance = new(() => new());
     public static HotkeyManager Instance = _instance.Value;
     private readonly Dictionary<int, EGlobalHotkey> _hotkeyTriggerDic = new();
+    [SupportedOSPlatform("windows")]
     private GlobalHotKeys.HotKeyManager? _hotKeyManager;
 
     private Config? _config;
@@ -16,6 +17,7 @@ public sealed class HotkeyManager
 
     public bool IsPause { get; set; } = false;
 
+    [SupportedOSPlatform("windows")]
     public void Init(Config config, Action<EGlobalHotkey> updateFunc)
     {
         _config = config;
@@ -26,9 +28,14 @@ public sealed class HotkeyManager
 
     public void Dispose()
     {
+        if (!Utils.IsWindows())
+        {
+            return;
+        }
         _hotKeyManager?.Dispose();
     }
 
+    [SupportedOSPlatform("windows")]
     private void Register()
     {
         if (_config.GlobalHotkeys.Any(t => t.KeyCode > 0) == false)
diff --git a/v2rayN/v2rayN.Desktop/Views/MessageBoxDialog.axaml.cs b/v2rayN/v2rayN.Desktop/Views/MessageBoxDialog.axaml.cs
index 12750144..768a8e1d 100644
--- a/v2rayN/v2rayN.Desktop/Views/MessageBoxDialog.axaml.cs
+++ b/v2rayN/v2rayN.Desktop/Views/MessageBoxDialog.axaml.cs
@@ -4,6 +4,11 @@ namespace v2rayN.Desktop.Views;
 
 public partial class MessageBoxDialog : Window
 {
+    public MessageBoxDialog()
+        : this(string.Empty, string.Empty)
+    {
+    }
+
     public MessageBoxDialog(string caption, string message)
     {
         InitializeComponent();
diff --git a/v2rayN/v2rayN/app.manifest b/v2rayN/v2rayN/app.manifest
index 1246cc30..519db8c6 100644
--- a/v2rayN/v2rayN/app.manifest
+++ b/v2rayN/v2rayN/app.manifest
@@ -1,12 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
 <assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3">
-  <asmv3:application>
-    <asmv3:windowsSettings>
-      <dpiAware xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">true</dpiAware>
-      <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">PerMonitorV2</dpiAwareness>
-    </asmv3:windowsSettings>
-  </asmv3:application>
-	
 	<!-- Enable themes for Windows common controls and dialogs (Windows XP and later) -->
 	<dependency>
 		<dependentAssembly>
diff --git a/v2rayN/v2rayN/v2rayN.csproj b/v2rayN/v2rayN/v2rayN.csproj
index 871d2940..9fd0d788 100644
--- a/v2rayN/v2rayN/v2rayN.csproj
+++ b/v2rayN/v2rayN/v2rayN.csproj
@@ -7,6 +7,7 @@
 		<UseWPF>true</UseWPF>
 		<ApplicationIcon>Resources\v2rayN.ico</ApplicationIcon>
 		<ApplicationManifest>app.manifest</ApplicationManifest>
+		<ApplicationHighDpiMode>PerMonitorV2</ApplicationHighDpiMode>
 		<SupportedOSPlatformVersion>7.0</SupportedOSPlatformVersion>
 		<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
 	</PropertyGroup>