Before you can run a virtual machine, you must configure it.
You can create or edit your virtual machine configuration using either the configuration editor or the configuration wizard. If you are a new user, the configuration wizard is the easier way to set up a virtual machine.
The set of configuration parameters for each virtual machine is stored in a configuration file.
You can modify a virtual machine configuration at any time except when it is powered on. In that case you must first power it off.