How to Repair BKF Files Manually?

As we all know about a universal fact that no computer file is immune to corruption, we should take timely back up to save our crucial data from any unwanted situation like virus attack, hardware failure or system crash, OS malfunctioning, etc. BKF files are sort of back-up copies created using NT-Backup utility which is an inbuilt tool that comes featured with most versions of Windows operating systems including Windows 2000, Windows XP and Windows Server 2003.


What are the common corruption issues with the Backup files?

  • CRC error occurs due to corruption of bits at the time of downloading.
  • Absence of catalog files( Without catalog files, you cannot restore the files)
  • Corruption in a large size of backup files.
  • Inaccessibility with Windows Vista, 7, 8.
  • Disk corruption
  • Virus attacks
  • Errors 0x80070724, 0x80070005, 0x8007007B, 0x8007000E, 0x81000109, etc.


Method 1: By Using NT Backup Tool to restore data

This tool runs smoothly in different operating systems. It provides two DLL files in the single folder where NTBackup.exe is present. The DLL files are mentioned below such as :

  • ntmsapi.dll
  • vssapi.dll

Note: If you run NTBackup.exe without these two modules, the following errors appear

 “The program can’t start because NTMSAPI.dll is missing from your computer. Try reinstalling the program to fix this problem”.

“The ordinal 3 could not be located in the dynamic link library VSSAPI.DLL”.


Follow the steps below to restore the lost or corrupted BKF files:

Step 1: First of all, download the NT Backup Tool and then extract the files inside the cabinet file to a folder. Run the file NTBackup.exe.

bkf recovery

Step 2: NTBackup will indicate that Removable Storage service i.e Removable storage not running. Click OK.

bkf recovery 2

Notes: It’s removed in Windows Vista & Windows 7.  So skip this step in these Windows.

Step 3: Then the new page open with the name of Welcome to Backup or Restore Wizard, click Next for further process.

bkf recovery 3

Step 5: Now, select the Restore files and settings radio button and click on Next button.

bkf recovery 4

Step 6: Click on Browse button and locate the .BKF file that you want to restore. Click OK.

bkf recovery 5

Step 7: Select the files/folders, which you want to restore, and click Next.

bkf recovery 7

Step 8: Now, click on Advanced.

bkf recovery 8

Step 9: Select the destination for the restored files and folder. Choose Alteration location from the drop down box under Restore files to and select Alternate location.

bkf recovery 9

Step 10: Configure the restore options accordingly.

bkf recovery 10

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Step 11: Click Next, and then Finish to restore the files or folders.

bkf recovery 12


  • Do not restore the files in their original location as this may cause volume mount points.
  • Click on Report to check the detailed information of restoration.
  • This method will not provide you with a desired output, if the BKF files are corrupted.


Method 2: By using third party recovery tool

You can use third party tool to repair the BKF files, but the only point you have to consider is to select the best one and repair your all data perfectly. BKF Recovery Tool is very important to repair the corrupted and lost BKF files.

Considering manual process to repair BKF file comes at the cost of precious time, as we have to follow manual steps to restore BKF files. Opting for manual process suits well for an IT professional but does not go well with any novice users with limited technical knowledge. In addition manual procedure does  not maintains the integrity of the original files as there is always some sort of data alteration leading to data loss.

Check the online demo of the BKF recovery tool here:

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