There are 5 parts to this article:
Part1 – Part2 – Part3 – Part4 – Part5

We are warned that filesystems on the disks to be converted need to be dismounted:

The system will need to reboot:

Confirm reboot:

At this point, add a drive. After the system reboot, go back in to computer management/disk management. There will be a Initialize and Convert Disk Wizard notification that the new drive will be set to a dynamic disk:

Select the disk to initialize: