I recently installed a 250GB SSD in my Desktop and now want to use my 1TB hard drive as a backup source in one partition, and as data storage on the other. I have Acronis Disk Director 12 and also a trial version of Casper 8.0. I tried using the Casper program as I was familar with that and set it to clone my main drive. It did so successfully it seemed, until I noticed there was way more free space on the cloned drive than the original, and vastly more. Why was this the case? I didn't try to see if I could run my system from this, though I probably should have, and wiped the drive clean with Disk Director. I then used Disk Director's clone command, which runs outside of Windows during the boot-up process. The result was much close to the original size of my drive, but still not exactly on like I thought it would be. The System Reserved is slightly bigger on the cloned drive, and the rest of the local drive is slightly smaller. I went in the bios and changed the boot disk to the one with the cloned system on it and my system booted up fine, so that's where I wanted to be, but I'm curious why the differences in size? But I would also like to backup changes I make on my SSD to the cloned drive on a regular basis automatically, and I see Casper is able to do this, and I'm not sure if Disk Director can do the same. If it can, I haven't found it yet. And I'm not sure if Casper can do it from a cloned disk it did not create. So can I do what I need to do?