How To Fix Error With NTBackup File - Version 5.4 How to fix error with NTBackup file? BKF repair software is the well working tool to fix error with NTBackup files quickly. The inaccuracy occurs due to some unpredictable reasons like:1. Missing catalog files from the Restore tab: In Windows 2000 systems, suppose we have created multiple BKF files with the help of multiple instances of Windows 2000 NTBackup utility. When we attempt to restore BKF files from Windows, we come across a problem. We find in the NTBackup that many catalog files are missing in the 'Restore' tab. Catalog files of BKF file allow the NTBackup utility to restore our crucial data from the BKF file.2. Files created on 32-bit Windows may get corrupted on 64-bit windows: When we create BKF files on 32-bit version of Windows, then it will be damaged or corrupted when we attempt to open these backup files in 64-bit versions of Windows operating system. In such critical situation we need one software which can help us to open these backup files without loss of actual data.