And unchecked “Allow link notifications from other blogs (pingbacks and trackbacks)”
That will only set the default to disable it on future posts/pages. If you have any existing posts/pages, you’ll need to edit the post/page, scroll below the editor to the Discussion box, and uncheck “Allow trackbacks and pingbacks on this page.”
If you don’t see the Discussion box below the post editor, click the Screen Options tab near the top-right and check “Discussion.”
And what about: “Attempt to notify any blogs linked to from the article”
That setting controls whether or not you send Pingbacks. You can leave it enabled or disable it, it depends on how you feel about it. ??