From time to time you may need to delete a comment on your blog. There could be any of a number of reasons why you need to delete it, we won’t worry about why you need to in this guide, just that you are going to.
First log in to your WordPress blog and go to the dashboard and click on the comments button
This will bring up a list of all your comments on your site in order with the most recent comment at the top. Look through the list until you find the comment you want to delete.
Once you find the comment you wish to delete if you hover your mouse over it you will see the menu appear with Unapprove | Spam | Delete | Edit | Quick Edit | Reply
If you click on the word Delete which normally appears in red you will get a pop up window asking you to confirm deletion. Click ok on this and the comment is removed from your blog.
This action cannot be undone!
You use exactly the same method for deleting posts or pages, the only difference being you click on Posts or Pages on the sidebar to display the relevant content.
I’ll make the warning quite clear. Deleting content of any type cannot be undone. There is no recycle bin, you get no second chances! Check, double check and check again before you press the ok button!