I don't understand the instructions to make incremental sector backups and the program isn't intuitive to me. I have two disks. I have backed up c: of disk 0/ on to e: of disk 1/; they are both 128GB partitions. A few days have now gone by and I want to back this up, the c: partition of disk 0. I want now to make the differentials. How? Is the previous full saved partition, e: (1), in my case, the base archive? Now how do I add this file and make the differentials as I found the "differential backup wizard" confusing and it would not let me enter anything.