As instructed, I am usig Cygwin just because it is supposed to automatically have 'ssh', right?

After vagrant up, I run vagrant ssh, and I get: 'ssh' executable not found i any directories in the %PATH% variable. Is a SSH client installed? Try installing Cygwin, MinGW or Git, all of which contain an SSH client. Or use the PuTTY SSH client with the following, blah blah blah.

I've been at this for over a week now. I have tried PUTTY several times and keep running into these same errors.

It tells me right there in the error I get while using Cygwin to try running it on Cygwin. Unbelievable. Any guesses how I can fix this? I would be forever in debt.