I am trying to install Windows 10 on Ovirt 4.2

I pushed the virtio-win iso and vfd files to my ISO domain.   I created the VM and loaded the CD rom with the windows install ISO and in the "run once" settings I chose the virtio-win selection as a floppy.  However when entering windows setup, there is no drive to install to, and no floppy shows up in the usual place to install the drivers. 

the installation did succeed when selecting "IDE" as the target disk instead of the virtio or virtio-SCSI options.

Is there any way to install the drivers after the fact and then change the disk mode from IDE to virtio?

Is the method on this page https://www.ovirt.org/documentation/how-to/virtual-machines/create-a-windows-7-virtual-machine/ 

still relevant?  Looks like they suggest swapping the CD disk once the windows setup has begun.