The freeware version of MS backup recovery tool offers you with the ability of repairing the damaged BKF file and previewing its contents. The trial version of BKF Recovery application comes absolutely free of charges and you can easily download it online from its respective site. With the trial version you can preview the demonstration of software and its working. This way you can also know the software and learn the operability of its functionalities prior to purchase. The only limitation is that you won’t be able to save the repaired BKF file contents to your system for free i.e. via the trial version as part of the demonstration limit.