Abstract: Today file system is the important concept in the design of computer operating system. Fie system is used to store and retrieve data. With the file system it is easy to identify any information stored in it. Various file systems are available in market. Some file system are design for specific application. Today as demand is increasing for large storage space, most researchers are paying attention to increase the storage capacity of file system. Recently window release the new file system ReFS called Resilient File System supports the large storage requirement.This paper presents the overall study of Window ReFS file system. In this paper, ReFS goals and features are discussed in section 1 and 2. Section 3 include the detail study of ReFS. And finally comparison and related study given in section 5 end with the conclusion.

Keywords: ReFS,NTFS, Bit-rot,salvage