Asus P9D-C/4L - Manual (Page 140)

6-16 Chapter 6: Driver installation
6. Click Next in the Welcome to the
InstallShield Wizard for Intel(R) Network
Connections.
7. Toggle I accept the terms in the license
agreement then click Next in the License
Agreement window.
8. Select the drivers you want to install in the
Setup Options window and click Next.
9. From the Ready to Install the Program
window, click Install.