|After you're sure the malware is totally gone, you need to find the latest device driver downloads for your laptop. Windows rarely finds the needed device drivers, so you have to do this yourself.|
Here is a great website to get you started:
Driverstorer is a great device driver help website, and has direct links to all the latest device driver downloads.
You might have to use a different computer to find and download the updated device drivers, because your Ethernet card does not work, then you can put them on a USB stick or burn them on the CD, then move the files to the laptop to be executed.