Please follow the steps below; Go to http://ckfinder.com/download and download CKfinder Unpack the contents of the installation package into the directory that contains the CKEditor module and place it in thesites/all/modules/ckeditor/ckfinder (or sites/all/libraries/ckfinder) folder. . When the files are unpacked, you should see the following file structure inside the drupal/sites/all/modules directory: Now open the CKFinder configuration file (ckfinder/config.php) and introduce the code changes described below. Firstly, remove the CheckAuthentication() function (do not worry, this function is defined in filemanager.config.php, see below): function CheckAuthentication() <- remove it { <- remove it //WARNING : DO NOT simply... <- remove it ... ...