I'm trying to install Pygame and it returns me the following error "Python version 3.4 required which was not found in the registry". However I already have the Python 3.4.1 installed on my system. Does anyone know how to solve that problem? 
I've been using Windows 8.1
Thanks in advance.
Are you using a 64-bit operating system? Try using the 32-bit installer.
Error installing Pygame / Python 3.4.1