Ntbackup Verification Pass Might Fail To Detect Bkf Corruption

NTBackup is a Windows backup utility that allows you to perform backup of important data using a proprietary format-BKF. The file thus created as backup can be used to restore lost files and folders after data loss. BKF files might get corrupt due to several reasons including incomplete backup, interruptions while backup, storage media errors and more. Thus, it is suggested to verify your backup after each stage of performing backup. But if you are using NtBackup verification pass to detect errors in your BKF file, some of the corruption errors might be left undetected. This pass might result that there are no errors in the file, even though the file is corrupted. Thus, you will need to use an efficient bkf repair tool to restore the lost data from the corrupted file.

For an instance, consider that you backup some important files and folders using NTBackup utility in a BKF file. You perform a verification pass using NTBackup and it reports the backup error-free. However, when you try to restore the backup after data loss using the same BKF file, you fail to do so as it is corrupt. You might observe this behavior in Windows 2000, XP or Server 2003 based systems.

Cause

The prime cause for the above issue to occur is that NTBackup sometimes fails to detect some types of corruption in BKF files while verification pass. It uses checksum criteria to determine the corruption of BKF files. The algorithms thus used employ word-wise X-OR (Exclusive OR) operation to compare the backed up data for corruption. This checksum algorithm fails to detect BKF file corruption if it occurs in the data that is located at the same place in the word even number of times.

Solution

Try these suggestions to recover from the situation discussed above:

Use another copy of your backup to restore the lost data and discard the corrupted BKF file
Repair BKF file using a commercial application. bkf repair tool software are powerful tools specifically designed to scan a damaged BKF file and extract the original data from it

Stellar Phoenix BKF Recovery is an advanced utility that scans and repairs damaged BKF file in all type of corruption errors. It is a safe tool to Repair BKF files created with Windows 2000, XP and 2003 backup utilities. It is a reliable and high-end tool is compatible with Windows Vista, XP, 2003 and 2000 based systems.

By: Naveen Kadian

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Naveen Kadian is a self employed Internet entrepreneur and product reviewer. Stellar Information Systems Limited, the pioneers of data recovery, announces its repair bkf software launch. Stellar Phoenix bkf recovery scans and recovers corrupt BKF files. The company has launched it as the all-time solution for corrupt BKF files of Windows 2003, XP and 2000 backup utilities.