Go to "Control Panel"
Then go to:
Network and Internet
Network and Sharing Center
Change adapter settings
Select the connection for which you want to configure Google Public DNS by right-clicking on it and selecting "properties".
Select the Networking tab. Under This connection uses the following items, select Internet Protocol Version 4 (TCP/IPv4) or Internet Protocol Version 6 (TCP/IPv6) and then click Properties.
Check Use the following DNS server IP addresses.
For IPv4: 22.214.171.124 and 126.96.36.199.
For IPv6: 2001:4860:4860::8888 and 2001:4860:4860::8844.