方法5：

1、在运行中执行"regedit"；
  2、在注册表编辑器中找到以下路径，这时屏幕上会显示下述内容：
    "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\currentVersion\Expolorer\DocFolderPaths"
  3、右击"注册表编辑器"右侧的空白区域画面，从鼠标右键[新建]中单击[字符串值]；
  4、将[[字符串值]的名称指定为注册于XP的用户名称（即当前电脑的帐户名）；
  5、鼠标双击当前新建[[字符串值]的名称，将"数值名称"和"数值数据"值指定为"我的文档"的文件名称和其相应的路径；
    （C:\Documents and Setting\[用户名称]\My Documents）
  6、结束"regedit"。

方法6：

你新建个文本文件，把下面的代码复制进去并另存为*.reg文件运行一下试试看。
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer]

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\cleanuppath]
@=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,\
  00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,63,00,6c,00,\
  65,00,61,00,6e,00,6d,00,67,00,72,00,2e,00,65,00,78,00,65,00,20,00,2f,00,44,\
  00,20,00,25,00,63,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\DefragPath]
@=hex(2):25,00,73,00,79,00,73,00,74,00,65,00,6d,00,72,00,6f,00,6f,00,74,00,25,\
  00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,64,00,66,00,\
  72,00,67,00,2e,00,6d,00,73,00,63,00,20,00,25,00,63,00,3a,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\NameSpace]

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\NameSpace\Controls]
@="{21EC2020-3AEA-1069-A2DD-08002B30309D}"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\NameSpace\DelegateFolders]

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\NameSpace\DelegateFolders\{35786D3C-B075-49b9-88DD-029876E11C01}]
@="Portable Devices"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\NameSpace\DelegateFolders\{59031a47-3f72-44a7-89c5-5595fe6b30ee}]
@=""

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\NameSpace\DelegateFolders\{640167b4-59b0-47a6-b335-a6b3c0695aea}]
@="Portable Media Devices"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\NameSpace\DelegateFolders\{E211B736-43FD-11D1-9EFB-0000F8757FCD}]
@="Scanners & Cameras"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\NameSpace\{BDEADF00-C265-11D0-BCED-00A0C90AB50F}]
@="Web 文件夹"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\NameSpace\{FC9FB64A-1EB2-4CCF-AF5E-1A497A9B5C2D}]
@="Messenger Sharing Folders"