Restore Windows Backup Files - Version 5.4 The corruption of Windows backup .bkf files may due to many risk factors like Virus attack, Trojan infection, hardware failure, software crashed and other factors. In this situation, our BKF repair software which is very helpful software to repair damaged Windows backup file and restore Windows backup files in Windows 7. BKF repair software provides few simple steps to restore Windows backup files like; 1. First is to install and open BKF repair software; 2. Second is to select the corrupt Windows backup file in .bkf format, 3. Third is to start scanning process and preview corrupt Windows backup files; 4. And the last step is to save and restore Windows backup files in a specific location on your computer system. You can quickly and deeply restore Windows backup