I have followed http://www.robbagby.com/iis/self-signed-certificates-on-iis-7-the-easy-way-and-the-most-effective-way/ and https://www.sslshopper.com/article-how-to-create-a-self-signed-certificate-in-iis-7.html
When I go to the site, it still shows:
"The security certificate presented by this website was not issued by a trusted certificate authority.
Security certificate problems may indicate an attempt to fool you or intercept any data you send to the server."
An advice would be most welcome. I'm on Windows Server 2008 R2