Hello. I am currently using the Paragon Hard Disk Manager 14 Professional Demo. My intention is to buy it after I confirm that it works effectively to create incremental backups of various hard disks I have. The problem is this: it is taking forever to do an initial backup of a large drive. I have a 2 TB HDD, with approximately 1.5 TB of used space. I am trying to back it up to another 2 TB HDD in the same JBOD (connected to the computer by a USB 3.0 cable). After 12 hours, it says it still has 16 more hours to go. By contrast, if I do a "normal" PBF backup, it takes a maximum of (I'm estimating) around 10 hours. Here's another wrinkle: when I backup the C drive, which is about 66 GB of used space, it completes in about 7 minutes. What is going on? Why is it so slow? Do you have any suggestions? I want to use pVHD because I want to create quicker and more efficient incremental backups. Any advice would be appreciated. I am on Windows 7 x64. Thank you. EDIT: As a little update, it seems to be going about 10 MB/s (e.g. after a second or so, the filesize of the pvhd jumps from 858,132,600 KB to 858,142,600 KB). EDIT 2: In the end, it took around 60 hours! Crazy.