Please give us the exact commands you used and the error message.
Since if you haven't cygwin or msys installed, the error message should be different.
Furthermore it would be helpful to post the output of the
command.
Just for the case you don't know how to copy from the cmd.exe console:
Right click->Select Mark, mark the text with the left mouse button, press enter then the text is in the clipboard.
Regards
raph