Abstract: There is provided an information processing device comprising an NV memory that is a non-volatile recording medium, a file system unit that manages one or more files stored in the NV memory, and a memory management unit that secures one or more areas of the NV memory that are ready to be used by the file system unit to store a file, and allocates the secured one or more areas to a running process in response to a request from the running process. According to the information processing device, when the NV memory is used both as a main memory and a storage, inconsistencies in the file system caused by an abnormal termination of the system are reduced.