Ethernet Controller not installed.

Hi, I just installed Windows 7 in my PC. My old OS is XP. After I installed it, I can't connect to the internet because it says that no drivers are installed. Sorry but I don't know anything about the mb and etc. but my network adapter is built-in. So now I can't update other drivers...

The Ethernet, like other basic drivers should be found on your original mobo CD. Use that to install them. If you don't have the CD / DVD, you can download the drivers at the manufacturer's site --- of course not with your own PC right now, since you can't get there. But then, this might help: ethernet controller - Windows 7 Forums

Hope you get it fixed. If you don't, please give some specs about your system.