In the View your active networks section, click the Local Area Connection or Ethernet link.
On the Local Area Connection or Ethernet Status window, click the Properties button.
In the Properties window, select the Internet Protocol Version 6 (TCP/IPv6) or Internet Protocol Version 4 (TCP/IPv4) connection and click the Properties button. The connection you select depends on the type of Internet protocol in use for your Internet or Network connection.
In the Internet Protocol properties window, select the Use the following IP address option if not already selected. Specify the new IP address you want to use. You also need to specify the subnet mask and default gateway.