Restrictions on where LibreOffice Portable can be installed.
Asked here also: http://user.services.openoffice.org/en/forum/viewtopic.php?f=101&t=55169
This isn't really an issue, but it surprised me, so I thought I would ask about it ...
I normally have my regular programs in "G:\Program Files\". (And used to run LibreOffice Portable from "G:\Program Files\LibreOffice Portable").
I was using an older version of LibreOffice Portable, and set it up on a thumb drive and moved it to that folder and ran it from there - no problems, worked fine.