BKF File Repair Tool Video - Version 5.4.1 Now you can check complete working process of BKF file repair tool in just 2 minutes and 5 seconds by watching BKF recovery video which is available at this location: http://www.youtube.com/watch?v=PAgCPgT2Xys. A short video of this software can give you complete information about BKF file recovery. But we should know about the causes of BKF file corruption so that we can take some steps to prevent data loss situation. Some of the reasons that can cause BKF file restoration issues include:Multiple instances of NTBackup utility while BKF file creationImproper backup creation due to power cut or system shutdown problemVirus or Trojan attack those are known to corrupt any of the fileRunning BITS (Background Intelligent Transfer Service) at same time