I have been using Kaspersky to backup my data on external drives but if you haven't used it you will find it a little clunky. The software does what it should but after a certain amount of files the software starts to get slow. In my case the software took 15 minutes to scan for changes.15 hard drive grinding minutes that brought my up to date laptop to its knees. It just couldn't handle the number of files or the size of the backup. Because of that I started to look at alternatives. I found a lot of software that had tons of features but lacked ease of use. Kaspersky was very easy to operate but speed was getting to be important to me. Bvckup 2 was the backup software I decided to go with in the end. It lacks a lot of the features you would expect like file visioning, compression or encryption but it makes up for that with ease and speed. The software is clean and simple. No cluttered icons or useless extras just bare bones backups. The best thing going for it is the delta backups. It can update small parts of files that changed vs coping the entire file over again. This will cut down on the time to backup by leaps and bounds.