BKF File Repair Tool - Version 5.4 When you try to restore file in NTBackup and you get an error message “the backup file contains unrecognized data and cannot be used”, but your BKF file get corrupted. In this situation, you should employ to BKF file repair tool is a very outstanding program to repair corrupted BKF files that created by backup tool NTBackup.exe tool. There is an advanced feature like "Quick Mode" which quickly scans your BKF file, "Deep Mode" which deeply scans your BKF files without any loss of data. Using trail version of SysTools BKF Repair Utility free of cost, it allows you to Load corrupted BKF file, Scanning process of that BKF file, Preview the items recoverable from BKF, save recovered contents to the demo version only but cannot save to the system. You can save and extract BKF Files in your machine by purchasing the tool at the rate of $89.