Install the simple plugin for adding the new No CAPTCHA reCAPTCHA to WooCommerce login and registration form to protect your website from spam sign ups.
Go to your Dashboard > Plugins > Add New and search for: No CAPTCHA reCAPTCHA for WooCommerce
Click Install Now and then Activate Plugin – once done you will have No CAPTCHA appear when you go hover over the WooCommerce tab on your side menu.
First you will need to generate a ReCAPTCHA key with Google. To do this simply click Grab it Here. Log in to your Google account (if you don’t have one simply create one). Then click Get Recaptcha.
Fill out the form with your domain under label, add your domain(s) then the owner(s) by email and select Register. You will then be presented with your keys.
Now copy your Site key and Secret key and paste them into the plugins Site key and Secret key boxes.
Then you can select if you want people to use ReCaptcha on both the login form and the registration form, or just one. Then finally select the theme, language and error message then select Save Changes and you will have a spam free database of users.