Instance usage facilitating system

An object of the invention is to provide an instance usage facilitating system that finds an idle instance and makes the instance usable promptly and certainly. An instance usage facilitating system of the present invention is a system that detects an idle instance from among plural instances and makes the instance usable and includes a metrics acquisition unit, an instance selecting unit which selects an instance whose operating status should be inquired from among instances whose operating status is unknown, an inquiry unit which makes an inquiry of a user about the operating status of an instance and attaches a label indicating any of active, idle, and unknown statuses to the instance, an instance usage enabling unit which enables usage of an idle instance among labeled instances, and a machine learning unit which performs machine learning to determine the operating status of a new instance, using acquired metrics and labels.