How to Repair System State - Version 5.4.1 Sometimes system fails to extract ms backup files due to heavy corruption in this time main query comes to user mind how to repair system state backup files. Use BKF repair utility to repair system BKF file. By default, Backup files are stored in the C drive's Windows folder. System 32 contains all the BKF files which are under Windows folder. But if the location of the BKF file is changed, there is a huge chance of the files present in the backup system getting corrupt or damaged. MS backup files repair tool also available three scanning process for repair corrupt BKF files. In that situation backup system users can use BKF Repair Tool which is fully capable of performing the data recovery process in a very rapid session. Know how to repair system state BKF files which are corrupt and damaged with BKF Repair Tool which is utilized to repair BKF files even when the temporary location of the file is altered. You can purchase BKF Repair Tool for just $89 for its personal license. If you want the business license of the utility you can buy that by paying just $180.