Yep, that was the cause. Thanks!
Disabling firewall for 10 minutes and then re-enabling it works perfectly. Factorio even closes.
But it still doesnt solve the problem with the Intel RAID Drivers, but I think that was just random. My computer was running 3 weeks without a reboot so maybe that was ...

So, I just decided to play factorio again, installed a few mods (AdvancedEquipment, DyTech + DyTech Graphics, Insert this, F-Mod and OWL) and I was using Factorio 0.9.1
Then I noticed one of the mods requires 0.9.2 base. Yes I did make sure that I have experimental builds checked. I tried restarting ...

:l
I feel like an idiot now.

Hello,
I finally got into trains and rails in Factorio, but I think I am doing something wrong.
Basically, when I try to build a track in cirlcle-like shape it usually ends like this: http://puu.sh/3y4WH.jpg
Sure, the trains can go on those just fine, but isn't there a better way to do this?
In ...