Network Configuration requirements check failed while installing Oracle database

Tip: Configure Microsoft LoopBack Adapter as your system's primary network adapter. Workaround: Add Hardware, Control Panel, (Win7 and then no hardware added, you can enter it in cmd and enter Hdwwiz.exe to turn on adding hardware) I've also connected this hardware, add new hardware devices, Install my manual list select hardware (advanced), network adapter--Vendor: Microsoft Network card: Microsoft Loopback Adapter then proceed to the next step, add to finish.  You can then see a "local connection" in your network and Sharing center, with an IP address (for example: 192.168.0.1). Then you can re-check your network configuration requirements.

Network Configuration requirements check failed while installing Oracle database