I have the same problem, is there any permanent solution to this. I echo @Peter Andersson, i used the disk to disk and selected "proportionally" option still i didn't working, i tried with diff sized SSD's but the results are same. Example: Source 256 GB and Target drive is 512 GB, but it taking only 256 GB, whereas the disk manager shows the full disk size on the explorer it shows only 256 GB. Same for 1TB to 2TB, it just showing 1 TB only. I think the tool itself having this bug. Can the developer...