Manually change your DNS
Windows DNS Changer allows you to change the DNS servers you use to surf the web.
The interface consists of a single screen and allows you to choose between four DNS servers: Google DNS, Open DNS, DNS Sprint, or those of your provider, but you'll have to enter the information manually.
The app doesn't require installation, has no options, and is very easy to use. However, it lacks a benchmark system to check which DNS server is faster and more convenient to use from those available.