Lordtalha welcome to seven forums!
I need to know the model of the card before we can get you the right driver. You can right click on your computer, go to properties, device manager. When you get to the device manager there should be one that says network adapter. Just click on the arrow beside it and it will tell you what kind it is or at least enough about it to get you the driver. Just post it in the forum and I'll see what I can find.