This hotfix is for when virtual machines freeze at the "Stopping" state after you shut down the virtual machines in Windows Server 2012.
Consider the following scenario:
- You create some failover cluster nodes on computers that are running Windows Server 2012.
- You have the Hyper-V server role installed on the cluster nodes.
- You create virtual machines on one cluster node, and you configure the virtual machines as cluster resources.
- You enable Quality of Service (QOS) on the virtual machines, and you set the QOS to the minimum allowed value.
- You send lots of network traffic from the virtual machines to another cluster node.
- After the virtual machines run for a while, you shut down the virtual machines.
In this scenario, one or more virtual machines freeze at the "Stopping" state. Therefore, you cannot perform any actions on the virtual machines. For example, you cannot perform a live migration or a backup.
A supported hotfix is available from Microsoft