CONVERT volume /FS:NTFS [/V] [/CvtArea:filename] [/NoSecurity] [/X]

volume

Specifies the drive letter (followed by a colon), mount point, or volume name.

/FS:NTFS

Specifies that the volume will be converted to NTFS.

/V

Specifies that Convert will be run in verbose mode.

/CvtArea:filename

Specifies a contiguous file in the root directory that will be the place holder for NTFS system files.

/NoSecurity

Specifies that the security settings on the converted files and directories allow access by all users.

/X

Forces the volume to dismount first if necessary. All open handles to the volume will not be valid.