After reading up on fuse file systems, It looks like solutions to this (unmounting) can be found in the official fuse documentation https://www.kernel.org/doc/Documentation/filesystems/fuse.txt in the section "Aborting a filesystem connection" Recommend adding a link to this documentation "for more Info" in the Help (since no MAN page exists for vmhgfs-fuse). The point is that now that hgfs is implemented as a mounted filesystem, common fuse system methods apply. Still, It would be nice to have a ready command available instead of digging into the fuse documentation. Maybe more examples in an expanded "Help"?