An error occurred while renewing interface Local Area Connection : The RPC server is unavailabl

This is how to fix it:

1. Click Start, and then click Run.
2. In the Open box, type regedit, and then click OK
3. In Registry Editor, select File, Export and then save a copy of the registry to the desktop.
4. In Registry Editor, expand HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services.
5. Right-click Winsock, and then click Delete. When you are prompted to confirm the deletion, click Yes.
6. Right-click Winsock2, and then click Delete. When you are prompted to confirm the deletion, click Yes.
7. Click Start, then Control Panel, and then Network & Internet Connections.
8. Right-click on Local Area Connection, and then click Properties.
9. In the Local Area Connection Properties click Install.
10. In the Select Network Component Type click Protocol, and then Add.
11. You will now see a list of available protocols, click Have Disk…
12. Enter the following path, c:\windows\inf or c:\winnt\inf, and then click OK
13. You will now see an expanded list of available protocols, select Internet Protocol (TCP/IP), and then click OK
14. Reboot