If you unregister a virtual machine from a host but you do not delete the virtual machine from the datastore, you can re-register the virtual machine by using the VMware Host Client. Re-registering a virtual machine makes it appear in the inventory once again.

1

The New virtual machine wizard allows you to select one or more virtual machines that you would like to register.

2

If you remove a virtual machine from a datastore but you do not delete the virtual machine from the host that you are managing, you can register the virtual machine on the datastore.

3

Review your selections for virtual machine registration and complete the registration.