I'm simply going into the Disk Management interface, right-clicking on the C: partition of Disk 0, choosing "Add Mirror" (see attached screenshot), picking Disk 1 as the mirror location, accepting the warning that the process will turn them from Basic to Dynamic disks, then getting the error...
I have two identical 2TB SSDs. Disk 0 contains the OS and some data, and Disk 1 is all unallocated space. I want Disk 1 to be a mirror of Disk 0. When I right-click on Disk 0 and choose Add Mirror, it recognizes Disk 1 as the likely partner, warns me of the conversion to dynamic disks, and then...