| Microsoft Windows NT based operating systems | | | | requested media |
| possess NTBackup tool. It allows you to create | | | | At this point of time, you can't re-create missing |
| concurrent backup by running more than one | | | | catalog files while other BKF files, which were |
| backup instance. This process is helpful if your | | | | created concurrently, already exist under the |
| system's performance is degrading and you do | | | | Restore tab of the NTBackup tool. Thus, you |
| not have much time to run separate backup | | | | can't restore the data from BKF file stored on |
| processes. But sometimes the Microsoft Backup | | | | your backup media. |
| File (BKF file) created using NTBackup can not be | | | | Root of this problem |
| used to restore data. The reasons behind such | | | | NTBackup tool creates catalog files for every |
| behavior may be BKF file corruption and you need | | | | BKF file and of every backup operation which is |
| to opt for BKF Recovery solutions to sort it out. | | | | completed. These files are stored in the following |
| When you see the BKF files, which are created | | | | folder on your Windows computer: |
| using concurrent execution of several backup | | | | %SystemRoot%\Documents and |
| processes, you will discover that the catalog files | | | | Settings\Account\Local Settings\Application |
| are missing from the Restore tab under the | | | | Data\Microsoft\Windows NT\NTBackup\catalogs |
| NTBackup utility. Catalog files of BKF file allow the | | | | The Catalog files are shown under the Restore |
| NTBackup utility to restore your critical data from | | | | tab of NTBackup utility, so that you can select |
| the BKF file. | | | | the part of backup file that you want to restore. |
| Although, all the backup operations complete | | | | When you create more than one backup at a |
| successfully without showing any error message | | | | time, the catalog files share identical timestamp |
| while backing up the data, but when you try to | | | | attribute. In this case, the backup set that was |
| restore the data, you might encounter an error | | | | attributed first, emerges under the Restore tab. |
| message related to unrecognizable and unusable | | | | Other backups started concurrently do not |
| file. Some of these error messages can be as | | | | appear under the Restore tab and you can't add |
| given below: | | | | them manually. |
| - The backup file contains unrecognized data and | | | | This process corrupts BKF file and bkf repair |
| cannot be used | | | | becomes necessary to achieve precise recovery. |
| - The backup file is unusable. You must erase it, | | | | This is best possible using powerful and advanced |
| or choose another file | | | | third party BKF Recovery software. |
| - An inconsistency was encountered on the | | | | |