- Go to the Posts -> All Posts screen in your blog dashboard.
- Select the posts you would like to modify or check the box next to “Title” column at the top to select all posts on that page.
- Select Edit from the Bulk Actions drop down menu.
- See in the top of your screen you can find Like this:
- Expand the Screen Option and Check the Discussion check box. You can find a option blow the Content writing body.
- Uncheck the Both check boxes if you don't want to give option to comment. that's it. than just
- Click the Update button.
- You also can easily remove the comment optio from you page easily By this way.
For More Detail. Visit this page.