diff --git a/install-dev/langs/fr/install.php b/install-dev/langs/fr/install.php
index a88784dda..cda3ca4ab 100644
--- a/install-dev/langs/fr/install.php
+++ b/install-dev/langs/fr/install.php
@@ -193,7 +193,7 @@ return array(
 		'Fixtures class "%s" not found' => 'La classe "%s" pour les fixtures n\'a pas été trouvée',
 		'"%s" must be an instane of "InstallXmlLoader"' => '"%s" doit être une instance de "InstallXmlLoader"',
 		'Display' => 'Afficher',
-		'You already have PrestaShop version %1$s installed. If you want to upgrade to the latest version please read our documentation : <a href="%2$s">%2$s</a>' => 'Vous avez déjà PrestaShop version %1$s d\'installé. Si vous souhaitez utiliser la dernière version, merci de vous référer à notre documentation pour la mise à jour : <a href="%2$s">%2$s</a>',
+		'<b>Warning: You cannot use anymore this tool to upgrade your store.</b><br /><br />You already have <b>PrestaShop version %1$s installed</b>.<br /><br />If you want to upgrade to the latest version please read our documentation: <a href="%2$s">%2$s</a>' => '<b>Attention: Vous ne pouvez plus utiliser cet outil pour mettre à jour votre boutique.</b><br /><br />Vous avez déjà <b>PrestaShop version %1$s d\'installé.</b><br /><br />Si vous souhaitez utiliser la dernière version, merci de vous référer à notre documentation pour la mise à jour : <a href="%2$s">%2$s</a>',
 		'PrestaShop Wizard Installer' => 'Installation de PrestaShop',
 	),
 );
\ No newline at end of file
diff --git a/install-dev/theme/views/welcome.phtml b/install-dev/theme/views/welcome.phtml
index f5c21ef2c..8f9c78061 100644
--- a/install-dev/theme/views/welcome.phtml
+++ b/install-dev/theme/views/welcome.phtml
@@ -5,7 +5,12 @@
 <?php endif; ?>
 
 <?php if ($this->can_upgrade): ?>
-	<div class="warnBlock"><?php echo $this->l('You already have PrestaShop version %1$s installed. If you want to upgrade to the latest version please read our documentation : <a href="%2$s">%2$s</a>', $this->ps_version, $this->getDocumentationUpgradeLink()) ?></div>
+	<div class="warnBlock">
+		<img src="theme/img/pict_error.png" alt="" style="vertical-align: middle;" /> &nbsp;
+		<?php echo $this->l(
+			'<b>Warning: You cannot use anymore this tool to upgrade your store.</b><br /><br />You already have <b>PrestaShop version %1$s installed</b>.<br /><br />If you want to upgrade to the latest version please read our documentation: <a href="%2$s">%2$s</a>',
+			$this->ps_version, $this->getDocumentationUpgradeLink()
+		) ?></div>
 <?php endif; ?>
 
 <h2><?php echo $this->l('Welcome to the PrestaShop %s Installer.', _PS_INSTALL_VERSION_) ?></h2>