新建一个文本文档，输入如下内容：

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions]

[HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin]

[HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2]

"cygdrive prefix"="/cygdrive"

"cygdrive flags"=dword:00000022

[HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/]

"native"="e:/cygwin"

"flags"=dword:0000000a

[HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/bin]

"native"="e:/cygwin/bin"

"flags"=dword:0000000a

[HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/lib]

"native"="e:/cygwin/lib"

"flags"=dword:0000000a

[HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/tmp]

"native"="e:/cygwin/tmp"

"flags"=dword:0000000a

[HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\Program Options]

这里我的CYGWIN是安装在e:\cygwin下，应当根据实际情况来修改。

然后保存，关闭，将文件后缀名改为".reg"，然后双击，会弹出一个框框，点击“是”，就ok了。