diff --git a/function/normal.php b/function/normal.php
index a57a767..e6a4d95 100644
--- a/function/normal.php
+++ b/function/normal.php
@@ -126,7 +126,7 @@ function install()
         }
     }
     if ($_GET['install0']) {
-        /**if (!ConfigWriteable()) {
+        if (!ConfigWriteable()) {
             $html .= getconstStr('MakesuerWriteable');
             $title = 'Error';
             return message($html, $title, 201);
@@ -135,7 +135,7 @@ function install()
             $html .= getconstStr('MakesuerRewriteOn');
             $title = 'Error';
             return message($html, $title, 201);
-        }*/
+        }
         $html .= '
     <form action="?install1" method="post" onsubmit="return notnull(this);">
 language:<br>';