Also from your Device Manger you don't have the Dell Wireless WLAN 1397/1501/1520 Half MiniCard so its driver won't install.
You have the Intel 6200 and it seems to have the driver correctly installed. The Intel Update Utility probably will get a later version of the driver for you.
I am not sure why your Ethernet controller is displaying twice. Right click Intel 82577LM (2) and select uninstall, follow through with the prompts and restart your computer.