Write an article based on this "Log into your Facebook user account. Browse your list of existing groups. Access the group's privacy setting. Edit the privacy settings of the group."
Go to Facebook's home page. Enter your registered email address and password in the fields at the top right corner of the home page. Then click on the "Log in" button to access to your user account. To make an existing group closed, you need to browse the homepage of that group and edit the privacy settings. Remember, a group consisting of 250 members or more can change its privacy setting from "Open" to "Closed," but not "Secret" to "Closed." Go to Your Group page. You will find here the list of all the groups you created at the top, under the "Groups You Manage" title. Click on the selected group name link to browse its home page. To make an existing group "Closed," you must access to the Group Settings page. You can reach at the Group Settings page of a group either from the Your Groups page or from the group's home page. To go to the Group Settings page of a group from the Your Groups page, click on the setting icon on the right side, next to the "Add to favorite" button. Click on the "Edit group settings" tab in drop-down menu to reach at the Group settings page. To go to the Group Settings page from the group home page, click on "Menu" button at the bottom right corner of the group cover image and select the "Edit group settings" tab in drop-down menu. On Group Settings page, click on the "Closed" radio button under "Privacy." When you are done, click on the "Save" button at the bottom of the page to make this group "Closed." The setting will be updated with a notification "Your changes have been saved" at the top of the page.