Besides pausing Windows virtual OS, any way to disable it permanently unless required?

[Internalaudit]

Is pausing of the Windows OS virtual machine tantamount to best battery saving?
Pausing virtual machine automatically
http://kb.parallels.com/en/6860

Or is there any other way to stop Parallels 10 from running unless once requires Windows?
Many thanks.

 

[Ram@Parallels]

Hello Internalaudit,
Pause Windows when no applications are open, this feature is designed to save your Mac resources, pausing a virtual machine is the best way to releases the resources, such as RAM and CPU from your currently used virtual machine.

 

[Internalaudit]

Thanks for your time and explanation Ram. They're much appreciated.