diff --git a/PCL.Core/Utils/OS/KernelInterop.cs b/PCL.Core/Utils/OS/KernelInterop.cs
index 72e6cd2f69..5068a8d699 100644
--- a/PCL.Core/Utils/OS/KernelInterop.cs
+++ b/PCL.Core/Utils/OS/KernelInterop.cs
@@ -71,6 +71,9 @@ private struct MEMORYSTATUSEX
 
     [LibraryImport("kernel32.dll", EntryPoint = "GetConsoleWindow")]
     private static partial nint _GetConsoleWindow();
+    
+    [LibraryImport("kernel32.dll")]
+    internal static partial uint GetACP();
 
     // ReSharper restore InconsistentNaming, UnusedMember.Local
 
diff --git a/PCL.Core/Utils/OS/SystemInfo.cs b/PCL.Core/Utils/OS/SystemInfo.cs
index 94f7b3706a..6b5756772b 100644
--- a/PCL.Core/Utils/OS/SystemInfo.cs
+++ b/PCL.Core/Utils/OS/SystemInfo.cs
@@ -1,6 +1,5 @@
 using System;
 using System.Runtime.InteropServices;
-using System.Text;
 
 namespace PCL.Core.Utils.OS;
 
@@ -19,7 +18,7 @@ public static class SystemInfo
     /// <summary>
     /// 是否使用 GBK 编码。
     /// </summary>
-    public static readonly bool IsGBKEncoding = Encoding.Default.CodePage == 936;
+    public static readonly bool IsGBKEncoding = KernelInterop.GetACP() == 936;
 
     /// <summary>
     /// 系统信息描述，例如 Microsoft Windows 11 专业工作站版 10.0.22635.0