In case Windows backup file got error message like the backup file contains unrecognized data and cannot be used, in such type problem you should need NTBackup Repair Tool is the apex recovery utility for users can easily recover corrupted BKF file. Repair ntbackup file also extract corrupt XP backup file in win 7 and windows vista. NTBackup Repair tool is easy in use and maintain the data integrity. If any corruption occurred inside any part of NTBackup files, you will be unable to open and read the including information. In such case you can try BKF Recovery which is advanced and powerful software to repair NTBackup file without any problem. NTBackup Repair Tool provides trail version facility which can aid you to easily preview the recovered NTBackup file without any money, but this facility not allow you to save recovered backup files in your machine, if you want to get the recovered files in your system then purchase full license version . For your easiness we offer license key in two packages 1. For single computer users pay $89 (Personal License) 2. For multiple users pay $180 (Business License).