[gecko]

NTFS actually has support for proper symbolic links, which are not the same as junction points. I come across this confusion fairly often and I'm not clear why. (`mklink /d` is what you're looking for, and do note that this is different from `mklink /j` in meaningful ways. Do note these commands must be run from an Administrator shell prior to Windows 10.)

[EDIT: Also, reading GP, it looks like their issue is something about VirtualBox support for symlinks, not Windows support for symlinks. Symlinks are enabled in Windows by default, so they'd only have to do something special if they were on a domain that disabled them in the group policy--but in that case, they wouldn't be able to turn them back on themselves on a reboot anyway.]