Network Adapter Not Working

[SpookySkeletons]

Hello, I have recently built a new computer. When I started it up, everything worked flawlessly except for the fact that there was no internet connection. I did troubleshooting, and it says that I need to install drivers. Which drivers I don't know. Also, when I try to find network adapters in the device manager, it is unlisted.

OS: Windows 7 Ultimate Edition
MoBo: msi H81M-P33

Thanks in advance.

 

[Emerald]

Does it show Ethernet Adapter under Other Devices in the Device Manager?

here are the LAN drivers from the MSI website:

http://download.msi.com/dvr_exe/realtek_pcielan_7_mb.zip