How to Resolve BKF Error - Version 5.4 How to resolve BKF error? Endeavor BKF Repair Utility is the powerful recovery program to recover corrupt BKF file. Sometimes backup file lost due to some causes like CRC error, virus infected, backup failure-error 0x80070040, suddenly and improper system shutdown or software malfunction etc, then BKF Recovery Software is the latest technology for resolve all corruption problem without any extra hesitation. Freeware tool provided for users can read, open and view the original continents BKF File from corrupted backup file. If you want to save permanently repaired corrupted BKF file then purchase full license of BKF Repair Software which is available at $89.