打开磁盘（如D盘）显示的是我的文档

应该是注册表关联紊乱了.新建一个.reg文件,内容如下:
Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\Folder\shell\open]
@=""

[HKEY_CLASSES_ROOT\Folder\shell\open\command]
@=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,00,45,00,78,00,70,00,6c,00,6f,00,72,00,65,00,72,00,2e,00,65,00,78,00,\
65,00,20,00,2f,00,69,00,64,00,6c,00,69,00,73,00,74,00,2c,00,25,00,49,00,2c,\
00,25,00,4c,00,00,00

[HKEY_CLASSES_ROOT\Folder\shell\open\ddeexec]
@="[ViewFolder(\"%l\", %I, %S)]"
"NoActivateHandler"=""

[HKEY_CLASSES_ROOT\Folder\shell\open\ddeexec\application]
@="Folders"

[HKEY_CLASSES_ROOT\Folder\shell\open\ddeexec\ifexec]
@="[]"

[HKEY_CLASSES_ROOT\Folder\shell\open\ddeexe