c# - Windows 7/10 中的根访问权限

Question

我在这里有点挑战。我应该备份一台计算机，因此我想使用 c:\ 作为我的 origo 来递归搜索要备份的文件。

using System;
using System.IO;

class Program
{
  static void Main()
  {
    int i;
    string source   = @"c:\";
    string destin   = @"x:\";
    string[] TypeOfFiles = new string[14];
   i=0;
   // Images / Movies:
   TypeOfFiles[i]   = "jpg"; i++;
   TypeOfFiles[i]   = "gif"; i++; 
   TypeOfFiles[i]   = "png"; i++; 
   TypeOfFiles[i]   = "jpeg"; i++;  
   TypeOfFiles[i]   = "tif"; i++;
   TypeOfFiles[i]   = "tiff"; i++;
   TypeOfFiles[i]   = "bmp"; i++; 

   // Adobe
   TypeOfFiles[i]   = "pdf"; i++; 

   // Office Classic:    
   TypeOfFiles[i]   = "doc";  i++;
   TypeOfFiles[i]   = "xls"; i++;
   TypeOfFiles[i]   = "mdb";  i++;

   // Office New:   
   TypeOfFiles[i]   = "docx";  i++;
   TypeOfFiles[i]   = "xlsx";  i++;
   TypeOfFiles[i]   = "mdbx";  i++;

   for (int n = 0; n <= TypeOfFiles.GetUpperBound(0); n++)
   {
     string[] files = Directory.GetFiles("C:\\", "*." + TypeOfFiles[n], SearchOption.AllDirectories);
    foreach (string file in files)
    {
            Console.WriteLine(file);
      }
    }
  }
}

我从控制台（以管理员身份）运行程序。我收到此异常：异常：System.UnauthorizedAccessException：对路径“C:\Documents and Settings”的访问被拒绝。ved System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) ved System.IO.FileSystemEnumerableIterator 1.AddSearchableDirsToStack(SearchData localSearchData) ved System.IO.FileSystemEnumerableIterator1.MoveNext() ved System.Collections.Generic.List 1..ctor(IEnumerable1 集合) ved System.IO.Directory.GetFiles(String path, String searchPattern, SearchOption searchOption) ved Program.Main()

我也试过：net user administrator /active:yes

我需要访问根目录。谁能帮我？