uninstalling singular

Hello
my laptop is running window 7 64 bit.I have installed singular successfuly in my laptop.But there is no option for uninstalling it under 'uninstall or change a programme'(control panel>programs>...).
Could you kindly tell me how to remove it from my laptop completely.

Singular comes with Cygwin.
If you want to uninstall Singular but keep Cygwin (for emacs, X11 etc),
use the Cygwin-setup.
Otherwise, to remove Singular and Cygwin, remove Cygwin via the
software panel of windows.