1. A computer program product comprising one or more computer-readable media having one or more computer-executable instructions that, when executed by one or more processors of a computing system, the one or more computer-executable instructions cause the computing system to perform a method for using a running operating system to launch a hypervisor, the method comprising: an act of an operating system launching a hypervisor; and an act of the launched hypervisor virtualizing at least one physical resource of the computing system to the operating system that launched the hypervisor.