You can migrate a vCenter Server for Windows instance to a vCenter Server 7.0 instance.
You can migrate a vCenter Server for Windows version 6.5 or 6.7 to a vCenter Server 7.0 appliance.
The vCenter Server example migration paths demonstrate supported migration outcomes.
You can migrate a vCenter Server 6.5 or 6.7 instance with an embedded Platform Services Controller to a 7.0. In this case the software migrates the vCenter Server instance and the embedded Platform Services Controller instance at the same time.
Before migrating a vCenter Server 6.5 or 6.7 instance with an external Platform Services Controller, you must converge the external Platform Services Controller to an embedded Platform Services Controller and then migrate to vCenter Server 7.0.