This 2012 version is extremely flawed and buggy. Incremental backups simply does not work. Same goes for their so called Nonstop backup which is supposed to backup only the changed portions of files. That`s on top of annoying interface glitches and very slow performance. Don't buy this product before checking the extremely unsatisfied customers in their support forums. I have been an Acronis fan for many years but their recent and complete lack of commitment to quality is making this boat sink.