Neowin reports that Windows 8 will get a new file system named ReFS
Windows 8 fans will have heard about Protogon at some point. The new file system has been spotted lurking in developer builds, but details are a little on the murky side. The important facts are these: disks can only be formatted in Protogon from the command line, Windows 7 and earlier can't read it, and it shares a lot of features with NTFS.Windows 8 file system gets upgraded, named ReFS
It looks like from here on out Protogon is no more. WinUnleaked has found that latest builds have removed Protogon support and replaced it with a new file system. Be prepared to hear "ReFS" a lot from now on, as this new system is better supported than Protogon ever was. For a start, the disk formatting utility actually lists it as an option.