Hi Dan,  This issue is normally caused by Permissions.  The Broker servers need to be members of the local admins group on the HyperV servers.  These would normally get added in by default so check that you don't have a "Restricted Groups" group policy that is removing them.  Thanks, Andrew. 
We upgraded to vWorkspace 8.5 last week and have noticed that when we go to delete a VDI we get the error below [IMAGE] Anyone else had this..?
Error when trying to delete VDIs