I'm trying to understand the difference between basic and dynamic disks. From what I've read I think I understand basic disks well enough since this is what ...

The most obvious difference between basic and dynamic disks lies in operating system support. While all versions of Windows--even DOS--support basic disks, we can't say the same for dynamic disks.

Basic Disk vs Dynamic Disk. Post shows how to convert basic disk to dynamic disk OR dynamic disk to basic disk using UI, Diskpart, CMD without losing data.

But now it does not read it correctly. In Disk Management the drive shows up as a dynamic disk. I did some reading and it seems that the Windows 7 machine will only read it as a Basic disk.