Also @Davi have you looked at wikis and forum posts elsewhere concerning this issue?
What we’ve said here isn’t anything you could pick up quicker from the Arch or even Ubuntu wiki, or the Arch bbs and elsewhere.
I tried Arch soon after trying Mint 9 and didn’t have much fun. The wiki really helped but it was such a culture shock from the easiness (in comparison) of Mint that it took me ages to understand stuff. Even now, years later, I’m nowhere near as good as a few of the people on this forum (for instance I missed telling you to ctrl+alt+F2 to get to a different tty to log in as root and systemctl disable lightdm.service!)
However, you aren’t giving us the full information that any other forum asks about your system. All we know is you have 2 laptops, one i3 and one i7. We don’t know the exact steps you’ve taken during install. What media have you tried putting the iso on to? Have you checked the iso for issues and md5sum?
If you can give us as much information as has been asked then it would be really much much easier to help you, and you might not feel so upset with AL.