Computer not detecting network hardware

Hello,
I recently installed Windows 7 Ultimate x64 onto a laptop which once has had working internet.
Since the installation has been completed, I no longer have access to internet. Wireless or wired.

In the bottom right of the screen it has the network icon with a red X through it. When I try to troubleshoot it says:
Windows did not detect a properly installed network adapter. Seeing as the network adapter has worked previously I am stumped. I have tried installing drivers but none of them have seemed to work.
It seems like the computer is not registering there is hardware for the internet.

Also, when I go into my device manager, there isn't an option for network adapters there.

Any help would be greatly appreciated as this has been stumping me all day long.

Thanks.

Tried to get as much info in the picture as possible

I don't know if it matters but I went from W8 to W7 install.... I'm wondering if I lost drivers or connection to the hardware somehow while doing that =/
But it was working on W8 and now is not working on W7

Gateway NE56R27u

Even if I connect it hardwired it doesn't connect to the internet either.