unsolicted distro recomendation (the worst kind of post)
@fschaap @ludoloonElementary OS looks pretty decent. I used to install fedora for people to help set them up, but elementry's Pantheon desktop, app center, and values seem solid and is what I've got on a usb drive for next time.
Also, whatever distro or browser you help set up do her a favor and install adblock for her.