Creating collection VDI problems windows Server 2012 /windows 8.1

First,thanks for the help.
I havea test labfor VDIandfollowthe process describedhere.

http://blog.itvce.com/?p=1569

i only change the HD ubication.
When I createa collection,when I selectthe template,it shows methis error: "There isa virtual hard diskexposed to thevirtualdesktop"
You havesome helpon this?

i suposed it´s a hard disk permissions.

thanks for everything.

http://kinomakino.blogspot.com