New PC won't recognize LAN - No Internet

Oh.. maybe because the Site I bought it from appears to customize them and sell them all under the same name :x
My version is sold out so now shown anymore, but its exactly like this one:
Acer Aspire G3-605 Predator Intel Core i7-4770 3,40GHz, 16GB RAM, 2TB HDD, NVIDIA GTX760, Win8 bei notebooksbilliger.de
The only difference is that I got Nvidia GeForce GTX660 and no OS, only FREEDOS. (if you go buy the description of the product.)

Ill give it a try and write then what happened :)

Edit: How do I find the Download for the Driver? :x Since Acer Predator isn't appearing in the menu :x

Ok I took a screenshot of several things, is that good enough? :)
imgur: the simple image sharer

I believe I found my PC - here
http://www.acer.de/ac/de/DE/content/model/DT.SPXEG.011

It is in the german store, but there is no driver for that one neither on the german acer website, how can that be? o.o

I get only trash if I google that Chipset name + Driver or whatever :/
Or what driver do I need to search now? :/

How do I install the driver? It's only .sys .inf and .cat files, no setup or so on :x