Re-register the performance counters from an elevated command prompt on the computer %ComputerName; by running the following ...

Re-register the performance counters from an elevated command prompt on the computer %ComputerName; by running the following commands: 
1) unlodctr.exe /m:"(Virtual Machine Manager installation directory)\bin\scperfprovider.man"
2) lodctr.exe /m:"(Virtual Machine Manager installation directory)\bin\scperfprovider.man" 
3) Restart the System Center Virtual Machine Manager Agent (SCVMMAgent) service. 
If the problem persists, reinstall the VMM agent on the computer %ComputerName;.