Windows provides NTBackup Utility and Symantec Group provides VERITAS backup Utility, which help you to back-up of significant data that can easily re-establish your data at the time of data loss.
Sometimes the backup file has got corrupted or damaged, due to this when you try to open backup file then it shows this error messages "BKF file cannot be accessed". In this situation you can not access your backup database. There are many reasons of backup file destruction like virus attacks, software and hardware malfunction, CRC error, improper and suddenly system shutdown etc.
In such a case, if you have a backup file which stored important database like outlook emails, files, folder, software, mp3 songs, documents, Microsoft database, .pst file and to-do list and it got damaged then your database can be easily recovered by some extraneous applications.
In case of corruption, use Windows BKF Repair Tool which is masterly software for “BKF file cannot be accessed” error. BKF Recovery Software recovers corrupt or lost files, folder and resolve error like: “bkf file cannot be accessed”. It successfully works on BKF failure and many more malfunction conditions. BKF Repair Software easily get back missing file and able to regain entire backup database quickly without any attempt. It can fluently recover corrupted backup file and recover damaged files from various errors such as: “BKF file cannot be accessed”, and virus infection.