After a virtual machine is created, you can start it. Starting a virtual machine is analogous to starting a computer by pressing the Power On button.
To start virtual machines:
Click the Servers and VMs tab.
Select the server pool on which the virtual machines reside in the navigation tree.
Select Virtual Machines from the Perspective drop-down list. Select one or more virtual machines in the management pane, and click Start .
The virtual machines are started.