You can use the vCenter Server Appliance GUI installer to restore a vCenter Server Appliance to an ESXi host or a vCenter Server instance. The restore procedure has two stages. The first stage deploys a new vCenter Server Appliance. The second stage populates the newly deployed vCenter Server Appliance with the data stored in the file-based backup.
Perform a file-based restore of a Platform Services Controller only when the last Platform Services Controller in the domain fails. If there are other Platform Services Controller instances in the same vCenter Single Sign-On domain, deploy a new Platform Services Controller instance and join it to the existing Single Sign-On domain.
Verify that your system meets the minimum software and hardware requirements. See System Requirements for the vCenter Server Appliance and Platform Services Controller Appliance.
If the vCenter Server instance is part of a vCenter High Availability cluster, you must power off the active, passive, and witness nodes of the cluster before restoring the vCenter Server.