function gw_remove_main_menu_links_others() {
    $user_id = get_current_user_id();
    if($user_id != '1') {
        remove_submenu_page( 'index.php', 'update-core.php' );
        remove_submenu_page( 'options-general.php', 'options-privacy.php' );
        remove_menu_page( 'plugins.php' ); 
        remove_menu_page( 'users.php' ); 
        remove_menu_page( 'themes.php' ); 
        remove_menu_page( 'tools.php' ); 
        remove_menu_page( 'options-general.php' ); 
        remove_menu_page( 'edit-comments.php' );
    }
}
add_action( 'admin_head', 'gw_remove_main_menu_links_others' );

function gw_remove_admin_bar_menu_links_others() {
    global $wp_admin_bar;
    $user_id = get_current_user_id();
        if($user_id != '1') {
            $wp_admin_bar->remove_menu('updates');
    }
}
add_action( 'wp_before_admin_bar_render', 'gw_remove_admin_bar_menu_links_others' );


function gw_remove_wp_update_note_others() {
    $user_id = get_current_user_id();
    if($user_id != '1') {
        remove_action( 'admin_notices', 'update_nag', 3 );
    }
}
add_action('admin_menu','gw_remove_wp_update_note_others');