well guys I made a huge improvement.

I switcht off my firewall, wile playing wow.
Deleted all the addons I don't need on my toons.
I got sound enabled.
I switcht off some processes that didn't needed to be on when playing wow.

And now I'm playing AV on 69% RAM,
What a huge difference that is...
I'm so happy :thumbsup:

Still gonna read up on those junction links, who knows I may be able to improve more...

Now to the next problem, getting my X Key pro (USB, imported from the USA) working...
X keys are qwerty and here everything is azerty
And then I'm set :P