diff --git a/core/lib/Drupal/Core/Config/ConfigInstaller.php b/core/lib/Drupal/Core/Config/ConfigInstaller.php
index 1cffc5c..cfd7e65 100644
--- a/core/lib/Drupal/Core/Config/ConfigInstaller.php
+++ b/core/lib/Drupal/Core/Config/ConfigInstaller.php
@@ -70,9 +70,17 @@ public function __construct(ConfigFactoryInterface $config_factory, StorageInter
   }
 
   /**
-   * {@inheritdoc}
+   * Gather default configuration to install.
+   *
+   * @param string $type
+   *   Type of extension to install.
+   * @param string $name
+   *   Name of extension to install.
+   *
+   * @return
+   *   Array with list of configuration keys to install.
    */
-  public function installDefaultConfig($type, $name) {
+  protected function gatherDefaultConfig($type, $name) {
     // Get all default configuration owned by this extension.
     $source_storage = new ExtensionInstallStorage($this->activeStorage);
     $config_to_install = $source_storage->listAll($name . '.');
@@ -103,17 +111,19 @@ public function installDefaultConfig($type, $name) {
 
       $config_to_install = array_merge($config_to_install, $other_module_config);
     }
+    return $config_to_install;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function installDefaultConfig($type, $name) {
+    $config_to_install = $this->gatherDefaultConfig($type, $name);
 
     if (!empty($config_to_install)) {
       $old_state = $this->configFactory->getOverrideState();
       $this->configFactory->setOverrideState(FALSE);
       foreach ($config_to_install as $config_name) {
-        // Only import new config.
-        if ($this->activeStorage->exists($config_name)) {
-          drupal_set_message(t('Active configuration with the name %config_name already exists therefore can not install the default configuration with the same name from %extension.', array('%config_name' => $config_name, '%extension' => $name)), 'warning');
-          continue;
-        }
-
         $new_config = new Config($config_name, $this->activeStorage, $this->eventDispatcher, $this->typedConfig);
         $data = $source_storage->read($config_name);
         if ($data !== FALSE) {
@@ -134,4 +144,28 @@ public function installDefaultConfig($type, $name) {
     }
   }
 
+  /**
+   * Validate default configuration before installation.
+   *
+   * @param string $type
+   *   Type of extension to install.
+   * @param string $name
+   *   Name of extension to install.
+   *
+   * @return bool
+   *   Whether all the default configuration of this module can be installed.
+   *   If any of the default configuration already exists in the system, returns
+   *   FALSE.
+   */
+  public function validatePreInstall($type, $name) {
+    $config_to_install = $this->gatherDefaultConfig($type, $name);
+    foreach ($config_to_install as $config_name) {
+      if ($this->activeStorage->exists($config_name)) {
+        drupal_set_message(t('Active configuration with the name %config_name already exists therefore can not install the default configuration from with the same name from %extension.', array('%config_name' => $config_name, '%extension' => $name)), 'warning');
+        return FALSE;
+      }
+    }
+    return TRUE;
+  }
+
 }
diff --git a/core/lib/Drupal/Core/Extension/ModuleHandler.php b/core/lib/Drupal/Core/Extension/ModuleHandler.php
index 001e278..412a54c 100644
--- a/core/lib/Drupal/Core/Extension/ModuleHandler.php
+++ b/core/lib/Drupal/Core/Extension/ModuleHandler.php
@@ -563,6 +563,13 @@ public function install(array $module_list, $enable_dependencies = TRUE) {
           )));
         }
 
+        // Validate default configuration of this module. Bail if unable to
+        // install. Should not continue installing more modules because those
+        // may depend on this one.
+        if (!\Drupal::service('config.installer')->validatePreInstall('module', $module)) {
+          break;
+        }
+
         $module_config
           ->set("enabled.$module", 0)
           ->set('enabled', module_config_sort($module_config->get('enabled')))