Turning on WordPress Comments for a Single Post or Page

After navigating to the editing screen for the post or Page you wish to add comments to, find the “Discussion” box and check “Allow Comments.” (If you do not see the “Discussion” box on the edit Page, click “Screen Options” in the upper right corner of the browser window. Make sure the box next to “Discussion” is checked.) Save your changes by clicking “Publish”, “Save Draft” or “Update.”
Turning on Comments from the Posts or Pages Screen

Navigate to the Posts or Pages screen. In the list of Pages or posts, find the one you want and hover your cursor over the title of the post. You will see several links appear underneath the title. Click “Quick Edit” and check “Allow Comments.” Click “Update” to turn comments on for that post.
Turning on Comments for Multiple Posts or Pages

From the Posts/Pages screen, check the boxes next to the posts or Pages on which you want to enable comments. Select “Edit” from the “Bulk Edit” Dropdown box and click Apply. Then, select “Allow” next in the Comments dropdown box and finish by clicking “update.”
Managing Incoming Comments

Once you start receiving comments on your site, you can check the status of comments quickly by looking at the dashboard, the admin bar, or the left navigation menu. When you log in, the dashboard’s “Activity” box will show you the status of your comments. Hover over a comment to see your moderation options. From “Activity – Comments” you can approve, reply, edit, mark as spam, or trash comments. Alternatively, you can look to see if there is a number next to the comment bubble in the admin bar or “Comments” in the left navigation. This number represents how many pending comments require your attention.
Moderating Comments with the Comment Screen
WordPress makes moderating your users’ comments a simple process. The Comments Screen lays out the basic information about each comment and lets you decide what to do with it.
The Comments screen is divided into three columns: Author, Comment and In Response To. Each of these columns provide you with a different category of information about a particular comment.

Bulk Edit Comments

Like the posts and Pages screens, the Comments screen supplies a Bulk Action dropdown box. Select the comments you want to edit, and then select Unapprove, Approve, Mark as Spam, or Move to Trash from the dropdown and click “Apply.”
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