Tuxler is a simple VPN software that installs independently of your browser and allows you to change your IP address to that of another country quickly. It is heavily designed for privacy protection although it can be used to access sites that are blocked in your country as well.
Compared to its competition, it is a fast and lightweight alternative. You can instantly click and connect. A list of connections will greet you once you launch the desktop app. Tuxler is free to be downloaded in Windows. Alternatively, you can try other VPNs like Hamachi or HotSpot Shield.