Restore Old Windows NT BKF Files - Version 5.2 SysTools BKF Recovery Software has been developed for recovery of BKF File. You can use this tool to restore old Windows NT BKF Files and to repair Windows NT BKF files. You can restore old Windows NT BKF Files by performing scanning procedure on the corrupt BKF files. Backup system users who are using Windows NT can now use BKF Repair tool to restore old Windows NT BKF Files by the extraction ability of this tool. You can start the process to restore old Windows NT BKF files by getting the activation key which is available for just $89.