So I got a call from friend. Apparently their boss has had some problems with upgrading to Windows 10 (MS Tech Support is to blame, I guess). Anyway, the upgrade went bad and now the boss can't access the files. She has 4 years of information on that drive. She runs an adult group home and has very, very, very sensitive information that needs to be recovered. Are there any free programs that I could use to help her get some of the files back?