reCAPTCHA is an important way to prevent spam registration on your web store. To learn how you can enable reCAPTCHA on your user registration forms, please see the video below.
Not Seeing reCAPTCHA?
If you're not seeing the reCAPTCHA input on your forms, be sure that the field is "always enabled". To do this, click Edit for the Captcha field.
Then check the box for Is always enabled: