MS Backup files .BKF are created to backup all valuable files and folders, so that in times of corruption the bkf file could be used to restore all lost files and folders. Windows’ NTBackup utility is used to create BKF files for backing up the data.
But what will you do if BKF file itself gets corrupt? Trouble must say. Backup files are the only option for restoring inaccessible or deleted or lost files. And when BKF files play spoilsport, the situation worsens.
Consider a situation when you try to restore your files from existing BKF file. But, you notice that the files are not getting restored properly instead you encountering error messages. In short, backup file is not able to provide with restoration of backed files & folders. However, this situation is best tackled with BKF File Recovery tool, which repairs corrupt BKF files.
Let’s have a look at the reasons behind inaccessibility of .BKF file.
- A third-party backup software has set the below mentioned value to 1 while getting installed. But, the NTBackup utility sets it to 0.
“HKEY_CURRENT_USER\SOFTWARE\Microsoft\Ntbackup\Backup Engine\Backup files inuse”
- Another main could be missing files from the .BKF file. This happens when the value of the above mentioned entry is set to 0, the backup utility skips the open files, as a result of which some files might be missing while restoring from the .bkf file.
For resolving this issue, you need to set the following value to 0.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Ntbackup\Backup Engine\Backup files inuse.
Secondly, make sure that the file is consistent before you backup.
If above steps are being executed then most probably backup file .bkf becomes accessible. But if it’s not working, that means level of corruption is quite high. This can be tackled only with proficient BKF Repair tool. The software repairs corrupt backup files make it appropriate for use by individuals who need to recover data from corrupt or inaccessible BKF files. Please visit here http://www.bkfrepairtool.org/
NTBackup is a simple utility that is built in with Windows 2000, Windows XP and Windows Server 2003 Operating Systems to back up and restore data. Microsoft, the developers of Windows has replaced NT Backup with another utility named Windows 7 File Recovery (or Windows Backup and Restore Centre) in later version of Windows. And in Server Operating Systems starting from Windows Server 2008, a facility named Windows Server Backup has been introduced for backing up and restoring data.
When you need to backup data or needs to restore data from backup, you can open this tool through Accessories > System Tools from the Start Menu of the Windows. Alternately, you can run ntbackup.exe in the Run prompt or Command line.
NTBackup utility saves files to disks, tape drives and ZIP drives in BKF format and restores files from the backup when required. Sometimes, when you try to restore the data from the NTBackup, you may receive the message ‘The backup file contains unrecognized data and cannot be used.’ And you won’t be able to access the back up the files. It means that your backup files are corrupt. Then how can you restore your data?
Backup file corruption can happen due to many reasons such as: issues with ownership, mapping or permissions, and accidental system shut down at the time of backing up the data or accessing the data. It can happen due to the deletion of archive bit also. On Windows, when a file is created or modified, a file attribute named ‘archive bit’ is set. And when the file is backed up, the archive bit is cleared. Thus by looking at the status of the archive bit, one can say whether a file is backed up or not. Sometimes archive bit may get deleted due to some problems such as corruption, virus attack or some other error. In that case you won’t be able to restore backup files backed up by the NT Backup.
You cannot restore data from corrupt backup files using the NTBackup utility. Even the System Restore utility of Microsoft Windows won’t restore backup files. So you will have to depend on third party software like Kernel Recovery for BKF for restoring the backup files. Kernel Recovery for BKF is a professional tool for the recovery of BKF files from the backup created by NTBackup. Depending upon the depth of corruption, you can use either the Quick mode or Advanced mode of this tool to recover the backup files. It allows the user to save the recovered files in any location of his choice. Kernel Recovery for BKF works with most versions of the Windows operating system. The trial version of this software can be downloaded from its website for free to know more about it. Visit here http://www.bkfrepairtool.org/