diff --git a/admin/index.php b/admin/index.php
index 36b90ef64a7..c78d9df78f7 100644
--- a/admin/index.php
+++ b/admin/index.php
@@ -291,6 +291,14 @@
         error("You need to be an admin user to use this page.", "$CFG->wwwroot/login/index.php");
     }
 
+/// Check if we are returning from moodle.org registration and if so, we mark that fact to remove reminders
+
+    if (!empty($_GET['id'])) {
+        if ($_GET['id'] == $CFG->siteidentifier) {
+            set_config('registered', time());
+        }
+    }
+
 /// At this point everything is set up and the user is an admin, so print menu
 
     $stradministration = get_string("administration");
@@ -315,6 +323,20 @@
         print_simple_box(get_string('sitemaintenancewarning', 'admin') , 'center');
     }
 
+/// Print slightly annoying registration button every six months   ;-)
+/// You can set the "registered" variable to something far in the future 
+/// if you really want to prevent this.   eg  9999999999
+    if (!isset($CFG->registered) || $CFG->registered < (time() - 3600*24*30*6)) {
+        $options = array();
+        $options['sesskey'] = $USER->sesskey;
+        print_simple_box_start('center');
+        echo '<div align="center">';
+        print_string('pleaseregister', 'admin');
+        print_single_button('register.php', $options, get_string('registration'));
+        echo '</div>';
+        print_simple_box_end();
+    }
+
     $table->tablealign = "right";
     $table->align = array ("right", "left");
     $table->wrap = array ("nowrap", "nowrap");
@@ -410,6 +432,7 @@
     echo '</td>';
 
     echo '<td align="center" width="33%">';
+    $options = array();
     $options['sesskey'] = $USER->sesskey;
     print_single_button('register.php', $options, get_string('registration'));
     echo '</td></tr></table>';
diff --git a/lang/en/admin.php b/lang/en/admin.php
index 7b6eab1173e..d481eb2c22c 100755
--- a/lang/en/admin.php
+++ b/lang/en/admin.php
@@ -106,6 +106,7 @@ $string['importtimezonescount'] = '$a->count entries imported from $a->source';
 $string['importtimezonesfailed'] = 'No sources found! (Bad news)';
 $string['nodstpresetsexist'] = 'DST support is disabled for all users because there are no DST presets defined. You can define some presets using the button below.';
 $string['optionalmaintenancemessage'] = 'Optional maintenance messsage';
+$string['pleaseregister'] = 'Please register your site to remove this button';
 $string['sitemaintenance'] = 'The site is undergoing maintenance and is currently not available';
 $string['sitemaintenancemode'] = 'Maintenance mode';
 $string['sitemaintenanceon'] = 'Your site is currently in maintenance mode (only admins can log in or use the site).';