You add virtual machines to the vCenter Server inventory through their managed hosts. You can remove virtual machines from vCenter Server, from their managed host’s storage, or from both.
Adding Existing Virtual Machines to vCenter Server Remove Virtual Machines from vCenter Server vCenter Server , you do not delete it from the datastore. Virtual machine files remain at the same storage location and you can later re-register the virtual machine by using the datastore browser. This capability is useful if you need to unregister a virtual machine to edit the virtual machine's configuration file. The ability to remove a virtual machine and maintain its files is useful when you have reached the maximum number of virtual machines that your license or hardware allows. Remove Virtual Machines from the Datastore vCenter Server and delete all virtual machine files from the datastore, including the configuration file and virtual disk files. Register a Virtual Machine with vCenter Server
