How do you uninstall microsoft loopback adapter in vista?
Right-click Computer and go to Properties. Then, click on Device Manager. In Network, you will see Microsoft Loopback Adapter. Right-click and click Uninstall. Give it sometime to do the job. You might not immediately see the change in you Network and Sharing Center. If you still see it, just reboot the system and it should be gone. Hope it helps.