Disk is missing from target location

I am using Paragon Backup & Recovery™, version 10.0.15.12802 (19.01.11 ) (Advanced) Free. I have 4 internal hard drives.

I have just made a recovery disk and went to test it. The disk where my system partition is located (disk 0) does not show up as a target disk for restore purposes. It does however, show up when I use the restore feature from the software within windows7. It finds the backup archive using both recovery disk and within windows.

How can this be rectified as I don't really feel safe if my system drive suddenly fails.

Thanks.