1: Open the public_html (or relevant domain's folder)
2: Edit / create a file called .htaccess
3: Put the following lines in the file :
RewriteEngine On
RewriteCond %{HTTPS} !=on
RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
4: Save and close the file5: Load and test the site.
Url's should now be loading as https:// secured pages.