移除添加以管理员身份运行的兼容性，以防windows报毒

Form1.Designer.cs

@@ -28,22 +28,12 @@
         /// </summary>
         private void InitializeComponent()
         {
-            this.Update_Text = new System.Windows.Forms.Label();
             this.Update_Pro = new System.Windows.Forms.ProgressBar();
             this.Status_Box = new System.Windows.Forms.Label();
             this.Count_Box = new System.Windows.Forms.Label();
             this.Size_Box = new System.Windows.Forms.Label();
             this.SuspendLayout();
             // 
-            // Update_Text
-            // 
-            this.Update_Text.AutoSize = true;
-            this.Update_Text.Location = new System.Drawing.Point(12, 12);
-            this.Update_Text.Name = "Update_Text";
-            this.Update_Text.Size = new System.Drawing.Size(59, 12);
-            this.Update_Text.TabIndex = 0;
-            this.Update_Text.Text = "更新状态:";
-            // 
             // Update_Pro
             // 
             this.Update_Pro.Location = new System.Drawing.Point(12, 36);
@@ -53,10 +43,9 @@
             // 
             // Status_Box
             // 
-            this.Status_Box.AutoSize = false;
+            this.Status_Box.Location = new System.Drawing.Point(12, 12);
-            this.Status_Box.Location = new System.Drawing.Point(72, 12);
             this.Status_Box.Name = "Status_Box";
-            this.Status_Box.Size = new System.Drawing.Size(94, 12);
+            this.Status_Box.Size = new System.Drawing.Size(148, 12);
             this.Status_Box.TabIndex = 2;
             this.Status_Box.Text = "...";
             // 
@@ -86,7 +75,6 @@
             this.Controls.Add(this.Count_Box);
             this.Controls.Add(this.Status_Box);
             this.Controls.Add(this.Update_Pro);
-            this.Controls.Add(this.Update_Text);
             this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
             this.MaximizeBox = false;
             this.MinimizeBox = false;
@@ -96,13 +84,10 @@
             this.TopMost = true;
             this.Load += new System.EventHandler(this.Update_Load);
             this.ResumeLayout(false);
-            this.PerformLayout();
 
         }
 
         #endregion
-
-        private System.Windows.Forms.Label Update_Text;
         private System.Windows.Forms.ProgressBar Update_Pro;
         private System.Windows.Forms.Label Status_Box;
         private System.Windows.Forms.Label Count_Box;

Form1.cs

@@ -134,21 +134,13 @@ namespace CheckDownload
         /// <param name="message">状态消息</param>
         private void UpdateStatus(string message)
         {
-            // 只保留冒号后的简短信息（一般是文件名）；若无冒号则原样显示
-            string display = message;
-            int idx = message.LastIndexOf(':');
-            if (idx >= 0 && idx < message.Length - 1)
-            {
-                display = message.Substring(idx + 1).Trim();
-            }
-
             if (this.InvokeRequired)
             {
-                this.Invoke((MethodInvoker)delegate { Status_Box.Text = display; });
+                this.Invoke((MethodInvoker)delegate { Status_Box.Text = message; });
             }
             else
             {
-                Status_Box.Text = display;
+                Status_Box.Text = message;
             }
         }
 
@@ -557,14 +549,20 @@ namespace CheckDownload
                     return true;
                 }
 
-                UpdateStatus($"{fileName}");
+                if (!string.IsNullOrWhiteSpace(fileName))
+                {
+                    UpdateStatus($"下载:{fileName}");
+                }
                 UpdateCount($"{_completedCount + 1}/{_totalCount}");
                 if (await DownloadFileFromOneDrive(filePath, expectedMd5, tempFilePath))
                 {
                     return true;
                 }
 
-                UpdateStatus($"{fileName}");
+                if (!string.IsNullOrWhiteSpace(fileName))
+                {
+                    UpdateStatus($"下载:{fileName}");
+                }
                 UpdateCount($"{_completedCount + 1}/{_totalCount}");
                 string ossKey = $"File/{expectedMd5}";
 
@@ -584,15 +582,21 @@ namespace CheckDownload
             }
             catch (Exception ex) when (ex is OssException || ex is WebException)
             {
-                UpdateStatus($"{fileName}");
+                if (!string.IsNullOrWhiteSpace(fileName))
+                {
+                    UpdateStatus($"下载:{fileName}");
+                }
                 UpdateCount($"{_completedCount + 1}/{_totalCount}");
                 UpdateSize("");
                 string ossKey = $"File/{expectedMd5}";
                 return await DownloadFileWithFallback(ossKey, tempFilePath);
             }
             catch (Exception ex)
+            {
+                if (!string.IsNullOrWhiteSpace(fileName))
                 {
                     UpdateStatus($"下载异常: {fileName} - {ex.Message}");
+                }
                 return false;
             }
         }
@@ -613,25 +617,47 @@ namespace CheckDownload
                     return false;
                 }
 
+                if (!string.IsNullOrWhiteSpace(fileName))
+                {
                     UpdateStatus($"检查已存在的临时文件: {fileName}");
+                }
 
                 string actualMd5 = await Task.Run(() => CalculateMD5FromFile(tempFilePath));
 
                 if (actualMd5.Equals(expectedMd5, StringComparison.OrdinalIgnoreCase))
+                {
+                    if (!string.IsNullOrWhiteSpace(fileName))
                     {
                         UpdateStatus($"临时文件完整，跳过下载: {fileName}");
+                    }
+                    // === 新增: 将已存在的有效临时文件大小计入总下载量 ===
+                    try
+                    {
+                        var fileInfo = new FileInfo(tempFilePath);
+                        Interlocked.Add(ref _totalDownloadedBytes, fileInfo.Length);
+                    }
+                    catch
+                    {
+                        // 忽略获取文件大小的错误
+                    }
                     return true;
                 }
                 else
+                {
+                    if (!string.IsNullOrWhiteSpace(fileName))
                     {
                         UpdateStatus($"临时文件不完整，重新下载: {fileName}");
+                    }
                     File.Delete(tempFilePath);
                     return false;
                 }
             }
             catch (Exception ex)
+            {
+                if (!string.IsNullOrWhiteSpace(fileName))
                 {
                     UpdateStatus($"检查临时文件时出错，将重新下载: {fileName} - {ex.Message}");
+                }
                 try
                 {
                     if (File.Exists(tempFilePath))