Translation of "installable file system" into Japanese

A file system that is accessed through a file system driver (FSD) that is loaded onto a device by the user, rather than accessed by the built-in file system. An installable file system may be implemented differently from the built-in file system. For example, an installable file system may prevent a user from deleting files, provide automatic compression of files, or use a structure for internal information different from that used by the built-in file system.