1. A computer-implemented method for selecting pre-provisioned virtual machines (VMs) to process workload requests in a networked computing environment, comprising: receiving a workload request in a computer storage medium; identifying a set of software programs needed to process the workload request; selecting a set of VMs from a pool of pre-provisioned VMs having the set of software programs in the networked computing environment, the set of VMs being selected based on at least one of the following: a length of time to install the set of VMs; a probability of the set of VMs being in demand, or a quantity of the set of VMs having the set of software programs; installing the set of VMs; and processing the workload request using the set of software programs in the set of VMs.