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How to Solve Backup File Contains Unrecognized Data and Cannot be Used Error?

Siddharth ~ Published: May 9th, 2023 ~ BKF Files ~ 4 Minutes Reading

If you try to back up Windows data, the error message “The backup file contains unrecognized data and cannot be used” may appear. This type of error can be corrected manually. This guide provides all the manual strategies that can help you get out of this situation. Continue reading till the end to understand how to solve similar problems.

You must be wondering what were the main reasons for this error. So let’s start with why this is happening.

What are the Reasons for Windows BKF File Errors?

Users can back up their important data using the NT Backup tool already included in Windows XP. The fault can be caused by many factors. Some of these are as follows:

  • This problem will occur when users try to restore backup files created on Windows XP / Server 2003 using Windows 7, 8, 10, 11, and other versions of NTBackup Project.
  • When users attempt to restore a damaged backup file, the same problem occurs. BKF file corruption can be caused by a variety of factors, including virus entry, software fraud, hard drive malfunction, CRC error, and so on.

These are the two most common causes of Windows backup errors. Now, have a look at the main portion, which will assist you in resolving the problem.

Method to Solve “Backup File Contains Unrecognized Data and Cannot be Used” Error

This type of error is common in Windows backup files. Therefore, to solve this problem, today we have brought two solutions, with the help of which you will be able to complete this task very easily. The first technique is going to show us how to fix this problem using the NtBackup tool. After that, in another way, we will see whether this problem can be solved with the help of automatic software.

#1: Using NtBackup Utility to Fix this Error

  1. To begin, download the nt5backup.cab file, making sure it contains three files on the internet.
  2. When you run the ntbackup.exe utility, you will notice a notification about the Removable Storage service. Press the OK button.
  3. The Backup or Restore Wizard will then appear, with the option to select Advanced Mode if necessary. click the Next button.
  4. Choose one of the three options provided. Backup Wizard (Advanced), Restore Wizard (Advanced), and Automated System Recovery Wizard are all available.
  5. Next, navigate to the location where you wish to save your backup files.
  6. Select the relevant backup file to be recovered and searched for, then select files to restore.
  7. After that, click the Start Restore option. Check the message displayed in the pop-up window.

If you still get the “backup file contains unrecognized data and cannot be used error” after restoring a Windows XP backup after using the procedures described above, it signifies that your BKF file is damaged. Professional solutions can thus be used to swiftly recover a BKF file.

#2: Using Automatic Software to Solve “Backup File Contains Unrecognized Data and Cannot be Used”

There is only one way to cure the problem “The backup file contains unrecognized data and cannot be used error” with which you may repair it and restore your data. This error indicates that your file has been corrupted, preventing you from extracting BKF file data. There can be numerous causes for the BKF file to become damaged, and we have discussed all of them in detail above to explain why you are seeing this issue.

There is only one technique to solve this mistake, and it is called TaskManagerFix BKF Repair Software. Using this utility, you may restore and recover your data from corrupted files. Let us now look at how to utilize this software.

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How to Use This Professional Software to Fix this Type of Windows BKF Error

  1. First, Download and launch the application on your Windows computer.
    download software
  2. Navigate to and pick the BKF file.
    pick bkf files
  3. Choose a scanning mode: Quick, Deep, or Range Based, and then click the Scan button.
    scanning modes
  4. When the scanning is finished, the tool presents a preview of the recovered data objects.
  5. Extract the backup file to the original or the desired place after selecting the Extract option.
    desired location


All of the causes of “The backup file contains unrecognized data and cannot be used error” are thoroughly described here. The preceding post covered a short approach for quicker Windows backup file restoration. Thank you for reading this post; I hope you enjoy the solutions provided.