Adding Hyper-V Hosts to the Failover Cluster is pretty simple. And I will keep this part very short.
- First Setup your Hyper-V Hosts and configure the them (network, storage, etc)
- Now open the Failover Cluster Manager and choose “Add Node…”

- Select the new Hosts

- After you check you have added the right Hyper-V Hosts click next

- Now the hosts are added to the Failover Cluster

Now you can add or move virtual machines to the new Cluster Nodes.

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