Windows 7 - Network Adapter Card is not permitting access to TCP/IPv4 properties.

Aloha All,
The machine i'm using as I type, has Windows 7 x64 and uses a Realtek PCIe GBE Family Controller. Before I upgraded my router to a new Linksys E3200 "N", I was able to enter the controllers properties and change the Ip from DHCP to static.
Prior to changing routers, I entered the properties and changed the Realtek Controller from its static IP back to DHCP.
I then entered the router control panel and established my settings and went back into the properties of the Realtek Controller and attempted to enter the TCP/IPv4 properties.
I was stunned to get the following error message appeared saying that "In order to use TCP/IP, you must install and enable a network adapter card." (see screenshot_Need network adapter card)
So I then punched the "Install" button on the controllers properties dialogue panel. This brought up a new dialogue box titled "Select Network Feature type" (see screenshot_what network feature type).
I selected "Protocol" and faced (see screenshot_which Protocol) what seems to be the end of my attempts to return the controller card to a static IP for this evening. I'm hoping that some Guru in cyberspace can conjur up the correct settings to enable what I want to do.
Mahalo plenty and much aloha,
konadon