WordPress 3.8 – Dashboard 1 Column Screen Options
Another solution is to add the columns setting back to the settings. function wpse126301_dashboard_columns() { add_screen_option( ‘layout_columns’, array( ‘max’ => 2, ‘default’ => 1 ) ); } add_action( ‘admin_head-index.php’, ‘wpse126301_dashboard_columns’ ); There is a related Trac ticket: #26354