Consider the following scenario:
            - You have a Windows Server 2012 R2-based Hyper-V cluster managed by System Center Virtual Machine Manager (SCVMM).
 - You create a virtual machine (VM) in the Hyper-V cluster and enable the dynamic memory (DM).
 - You restart the virtual machine management service (VMMS.exe).
 
- The memory demand is empty in the Hyper-V Manager UI.
 - The performance counters for the DM do not exist.
 - The DM operations on the VM do not work.