1. A non-transitory computer-readable storage medium storing a software information management program that causes a computer to execute a procedure comprising: monitoring a plurality of processes generated by an installer for software when the software is installed to the computer; and generating software configuration information based on a plurality of file information, the plurality of file information being about a plurality of files, respectively, that are accessed by the plurality of processes, and relationships between the plurality of processes, the software configuration information associating the plurality of file information with the software.