Horrible program! The interface is all in super geek engineer TERMINOLOGY. I have NO IDEA what I'm doing or what anything means. The 'help' files are pathetic - also in 'engineer-eeze' so they are worthless. Can't find any help for error messages.Wouldn't matter anyway because I wouldn't have a clue what they're talking about.Want to guess your way through an important task like backing up a hard drive? Except you won't know if your doing that or one of several other flavors of backup operations. The program offers some different types of backups. I still have no idea which one I should be using, or what the difference is. Now the program is calling my hard disks "invalid". Windows says they are 'healthy' and they work JUST FINE. But I can't back them up because there is NO CLUE about what "invalid" means or what to do about it. $50 and lots of time down the toilet.