It seems that if your computer uses only "Dynamic Disks" the installation software will halt and give you an error that states:
"Not Enough Space
Oculus requires 2.85GB on an internal drive to set up. To continue, please make sure you have sufficient space on an eligible drive, or visit Oculus Support to learn more."
Upon which the only option for you to click is quit.
To make matters even more silly, I currently have 3 HDD's in my PC, all are internal drives, and one is a SSD.
In total, I have them split into 5 partitions as follows, with listed free space/total space.
C = 157GB free of 223GB (System Drive/SSD)
D = 222GB free of 223GB (Simple Volume on 3rd HDD)
E: = 222GB free of 223GB (Simple Volume on 3rd HDD)
F = 1.43TB free of 1.81TB (Striped Volume using entire 2nd HDD and duplicated size partition on 3rd HDD)
G = 90.5 GB free of 1.38TB (Simple Volume on 3rd HDD)
All 3 internal drives are set as Dynamic Drives. Thus the Oculus Setup software deems them as not eligible, and does not allow me to install, thus rendering my Oculus into an expensive paperweight.
In order to convert any of the disks to a Basic drive, I would have to entirely wipe/format the entire drive and convert it, thus losing all information on the drive, which would be very problematic if I was to do my System drive, and if I try converting either of the other two physical drives, then I would then lose the ability to have the striped volume, rendering my current backup/restore/file structure of my entire computer useless.
It seems, that to install 2.85 GB of driver software for a display, I have to buy a new hard drive, simply to install *ONLY* the software for this device.
What possibly could be the reason why Oculus cannot support a dynamic disk, when I have encountered no other program in my entire life of beta/alpha testing for various companies, that required ONLY a basic disk in order to be installed?
(And yes, I know there is some software out there that will allow you to convert a Dynamic Disk to a Basic disk, however none of them will work if the disk that you want to convert is labeled as a system disk, or if it has spanned/striped volumes. Even if you only have mirrored volumes, you have to break the mirror connection in order to convert.)
It also seems that every issue through the 100 pages of threads in this forum that deals with the "Not Enough Space" error actually stems from the disks actually being dynamic disks instead of basic, for some reason or another, regardless of if you have many Terabytes of free space.