Uninstalling Cygwin from Windows

ref: http://cygwin.com/ml/cygwin/2004-06/msg00964.html

To uninstall Cygwin you have to:

rmdir /s /q C:\cygwin
regedit -s rmcygwin.reg

[rmcygwin.reg]
REGEDIT4

[-HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions]
[-HKEY_CURRENT_USER\Software\Cygnus Solutions]