You can perform power operations on virtual machines, such as power on or off a virtual machine, suspending or resetting a virtual machine or shutting down the guest Operating System of a virtual machine.
Power On a Virtual Machine Powering on a virtual machine is the equivalent of powering on a physical machine.
Power Off a Virtual Machine Powering off a virtual machine is the equivalent of powering off a physical machine.
Shut Down a Guest Operating System Shutting down the guest operating system of a virtual machine is the equivalent of powering off a physical machine.
Reset a Virtual Machine Resetting a virtual machine clears state (memory, cache, and so on), but the virtual machine continues to run. Resetting a virtual machine is the equivalent of pushing the reset button of a physical machine. It initiates a hard reset of the operating system without changing the power state of the virtual machine.
Suspend a Virtual Machine Suspending a virtual machine preserves its current state by writing the memory to disk.
Discard the Suspended State of a Virtual Machine If a virtual machine is in a suspended state and you no longer need to resume the use of the machine, you can discard the suspended state. Discarding the suspended state removes the saved memory and returns the machine to a powered-off state.