diff --git a/core/includes/install.core.inc b/core/includes/install.core.inc
index 91a241f..0514d32 100644
--- a/core/includes/install.core.inc
+++ b/core/includes/install.core.inc
@@ -2454,7 +2454,6 @@ function _install_configure_form($form, &$form_state, &$install_state) {
     '#empty_value' => '',
     '#default_value' => \Drupal::config('system.date')->get('country.default'),
     '#options' => $countries,
-    '#description' => t('Select the default country for the site.'),
     '#weight' => 0,
   );
 
@@ -2463,7 +2462,6 @@ function _install_configure_form($form, &$form_state, &$install_state) {
     '#title' => t('Default time zone'),
     '#default_value' => date_default_timezone_get(),
     '#options' => system_time_zones(),
-    '#description' => t('By default, dates in this site will be displayed in the chosen time zone.'),
     '#weight' => 5,
     '#attributes' => array('class' => array('timezone-detect')),
   );
@@ -2477,10 +2475,10 @@ function _install_configure_form($form, &$form_state, &$install_state) {
     '#title' => t('Update notifications'),
     '#options' => array(
       1 => t('Check for updates automatically'),
-      2 => t('Receive e-mail notifications'),
+      2 => t('Send e-mails when updates and important security releases are available for installed components.'),
     ),
     '#default_value' => array(1, 2),
-    '#description' => t('The system will notify you when updates and important security releases are available for installed components. Anonymous information about your site is sent to <a href="@drupal">Drupal.org</a>.', array('@drupal' => 'http://drupal.org')),
+    '#description' => t('Anonymous information about your site is sent to <a href="@drupal">Drupal.org</a>.', array('@drupal' => 'http://drupal.org')),
     '#weight' => 15,
   );
   $form['update_notifications']['update_status_module'][2] = array(
diff --git a/core/lib/Drupal/Core/Database/Install/Tasks.php b/core/lib/Drupal/Core/Database/Install/Tasks.php
index 4ff0b71..49fb55c 100644
--- a/core/lib/Drupal/Core/Database/Install/Tasks.php
+++ b/core/lib/Drupal/Core/Database/Install/Tasks.php
@@ -232,7 +232,6 @@ public function getFormOptions($database) {
       '#type' => 'details',
       '#title' => t('Advanced options'),
       '#collapsed' => TRUE,
-      '#description' => t("These options are only necessary for some sites. If you're not sure what you should enter here, leave the default settings or check with your hosting provider."),
       '#weight' => 10,
     );