Is your BKF corrupt? Have you tired to find out the reasons behind BKF corruption? Corruption reasons are not specified. Before you can go for a fix, you need to understand what makes a BKF file corrupted such as virus infection, hard disk failure, sudden power failure, missing catalog file, software malfunction, CRC failed. So there is no other option available to
repair corrupted bkf files but you have to opt a third party BKF recovery software which are designed to restore data from corrupt BKF files in their original form. This tool supports corrupt BKF files which are created by NT-Backup as well as Symantec (VERITAS) Backup Exec. It performs recovery from multiple BKF files at a time, and supports recovery of compressed BKF files and from the files which are split into multiple parts.
Read more info:- http://www.pcrecoveryutility.com/bkf-recovery-tool.html