diff --git a/datamodels/2.x/itop-core-update/src/Service/CoreUpdater.php b/datamodels/2.x/itop-core-update/src/Service/CoreUpdater.php
index 31648367e..a1f651206 100644
--- a/datamodels/2.x/itop-core-update/src/Service/CoreUpdater.php
+++ b/datamodels/2.x/itop-core-update/src/Service/CoreUpdater.php
@@ -9,6 +9,7 @@
 
 namespace Combodo\iTop\CoreUpdate\Service;
 
+use Combodo\iTop\FilesInformation\Service\FileIntegrityException;
 use Combodo\iTop\FilesInformation\Service\FilesIntegrity;
 use DBBackup;
 use Dict;
@@ -535,7 +536,11 @@ final class CoreUpdater
 			SetupLog::Info('itop-core-update: Archive extracted, check files integrity');
 
 			// Check files integrity
-			FilesIntegrity::CheckInstallationIntegrity(self::UPDATE_DIR.'web/');
+			$sRootPath = self::UPDATE_DIR.'web/';
+			FilesIntegrity::CheckInstallationIntegrity($sRootPath);
+
+			///Check new modules
+			self::CheckNewModules($sRootPath);
 
 			SetupLog::Info('itop-core-update: Files integrity OK');
 		} catch (Exception $e)
@@ -604,4 +609,37 @@ final class CoreUpdater
 			throw $e;
 		}
 	}
+
+	/**
+	 * Throw an exception if there are new modules that were not already installed
+	 * @param $sRootPath
+	 *
+	 * @throws \ApplicationException
+	 * @since 2.7.7 3.0.1
+	 */
+	private static function CheckNewModules($sRootPath)
+	{
+		$aFilesInfo = FilesIntegrity::GetInstalledFiles($sRootPath.'manifest.xml');
+
+		if ($aFilesInfo === false) {
+			throw new FileIntegrityException(Dict::Format('FilesInformation:Error:MissingFile', 'manifest.xml'));
+		}
+
+		@clearstatcache();
+		$sSourceDir = MetaModel::GetConfig()->Get('source_dir');
+		foreach ($aFilesInfo as $aFileInfo) {
+			if (strpos($aFileInfo['path'], $sSourceDir) === 0) {
+				$aFilePath = explode('/', $aFileInfo['path']);
+				$sFolderPath = $aFilePath[0].'/'.$aFilePath[1].'/'.$aFilePath[2];
+				//if module don't already exist in itop and if module listed in manifest.xml is included in zip
+				if (!is_dir(APPROOT.'/'.$sFolderPath) && !is_file(APPROOT.'/'.$sFolderPath)
+					&& is_dir($sRootPath.'/'.$sFolderPath)) {
+					$sLink = utils::GetAbsoluteUrlAppRoot().'setup/';
+					$sLinkManualUpdate = 'https://www.itophub.io/wiki/page?id='.utils::GetItopVersionWikiSyntax().'%3Ainstall%3Aupgrading_itop#manually';
+					throw new FileIntegrityException(Dict::Format('FilesInformation:Error:CannotUpdateNewModules', $sLink, $sLinkManualUpdate).'::'.$aFilePath[2]);
+				}
+			}
+			// Packed with missing files...
+		}
+	}
 }