diff --git a/modules/block/block.info b/modules/block/block.info
index a74f5d7213e..528bf285ea2 100644
--- a/modules/block/block.info
+++ b/modules/block/block.info
@@ -8,3 +8,4 @@ core = 7.x
 files[] = block.module
 files[] = block.admin.inc
 files[] = block.install
+hidden = TRUE
diff --git a/modules/filter/filter.info b/modules/filter/filter.info
index 40a5d97e5b6..4a3b22b8313 100644
--- a/modules/filter/filter.info
+++ b/modules/filter/filter.info
@@ -8,3 +8,4 @@ files[] = filter.module
 files[] = filter.admin.inc
 files[] = filter.pages.inc
 files[] = filter.install
+hidden = TRUE
diff --git a/modules/node/node.info b/modules/node/node.info
index 477a56454d9..443e5d2c061 100644
--- a/modules/node/node.info
+++ b/modules/node/node.info
@@ -9,3 +9,4 @@ files[] = content_types.inc
 files[] = node.admin.inc
 files[] = node.pages.inc
 files[] = node.install
+hidden = TRUE
diff --git a/modules/system/system.admin.inc b/modules/system/system.admin.inc
index 1d37f6b6667..ae11a4557b7 100644
--- a/modules/system/system.admin.inc
+++ b/modules/system/system.admin.inc
@@ -637,16 +637,9 @@ function system_modules($form_state = array()) {
   // Used when checking if module implements a help page.
   $help_arg = module_exists('help') ? drupal_help_arg() : FALSE;
 
-  // The list of required modules.
-  $modules_required = drupal_required_modules();
-
   // Iterate through each of the modules.
   foreach ($files as $filename => $module) {
     $extra = array();
-    // If the module is requried, set it to be so.
-    if (in_array($filename, $modules_required)) {
-      continue;
-    }
     $extra['enabled'] = (bool) $module->status;
     // If this module has dependencies, add them to the array.
     if (is_array($module->info['dependencies'])) {
diff --git a/modules/system/system.info b/modules/system/system.info
index bbd5f7b18be..35fe341820c 100644
--- a/modules/system/system.info
+++ b/modules/system/system.info
@@ -8,3 +8,4 @@ files[] = system.module
 files[] = system.admin.inc
 files[] = image.gd.inc
 files[] = system.install
+hidden = TRUE
diff --git a/modules/system/system.test b/modules/system/system.test
index dc36470e445..e48ba16ac79 100644
--- a/modules/system/system.test
+++ b/modules/system/system.test
@@ -10,7 +10,7 @@ class EnableDisableCoreTestCase extends DrupalWebTestCase {
   function getInfo() {
     return array(
       'name' => t('Module list functionality'),
-      'description' => t('Enable/disable core module and confirm table creation/deletion. Enable module without dependency enabled.'),
+      'description' => t('Enable/disable core module and confirm table creation/deletion. Enable module without dependency enabled. Attempt disabling of required modules.'),
       'group' => t('System')
     );
   }
@@ -93,9 +93,9 @@ class EnableDisableCoreTestCase extends DrupalWebTestCase {
    */
   function testDisableRequired() {
     $required_modules = drupal_required_modules();
+    $this->drupalGet('admin/build/modules');
     foreach($required_modules as $module) {
       // Check to make sure the checkbox for required module is not found.
-      $this->drupalGet('admin/build/modules');
       $this->assertNoFieldByName('modules[Core][' . $module . '][enable]');
     }
   }
diff --git a/modules/user/user.info b/modules/user/user.info
index a0687d2506f..837ff733e2c 100644
--- a/modules/user/user.info
+++ b/modules/user/user.info
@@ -8,3 +8,4 @@ files[] = user.module
 files[] = user.admin.inc
 files[] = user.pages.inc
 files[] = user.install
+hidden = TRUE