DNS settings are specified in the TCP/IP Properties window for the selected network connection.
1. Go the Control Panel.
2. Click Network Connection, and click Change adapter settings.
3. Select the connection for which you want to configure Google Public DNS. For example:
o To change the settings for an Ethernet connection, right-click Local Area Connection, and click Properties.
o To change the settings for a wireless connection, right-click Wireless Network Connection, and click Properties.
4. Select the Internet Protocol/TCP/IP tab. and then click Properties.
5. Click Advanced and select the DNS tab. If there are any DNS server IP addresses listed there, write them down for future reference, and remove them from this window.
6. Click OK.
7. Select Use the following DNS server addresses. If there are any IP addresses listed in the Preferred DNS server or Alternate DNS server, write them down for future reference.
8. Replace those addresses with the IP addresses of the Google DNS servers: 8.8.8.8 and 8.8.4.4.
9. Restart the connection you selected
