aliabody,
You don't necessarily need to use M$ Windows to play games on Facebook.
There's a person in my family that also uses the computer mainly for Facebook
and its games, and that person has been using GNU/Linux (Xubuntu) for years
now, with no problems - although not knowing almost anything about computers.
(It's not a /completely/ free system, yes, but it's much better than Windows,
in that respect.)
The Xfce desktop environment at least, is just as - or even more - simple to
use than Windows, and using GNU/Linux, you have the advantage of a much more
secure system, where you can let a person who doesn't know much about
computers use one without having to worry about that person messing up the
system or catching any viruses, Trojan horses or any other sort of malware -
which is a great advantage, since we use the Internet, and our computers,
nowadays for a lot of important and personal things.
As for dual boot, I have never used such a scheme for GNU/Linux distros.
Never had the need to and only worry about installing the best distro for the
particular computer in case. And only used to use such a scheme, in the
beginning, to play a game on Windows. The only thing I do is to use different
OS on different computers. And am now impatiently waiting for the new version
of Trisquel to be be released, in order to try it out on one of them.
