How to Remove Gameplayinfo.org Completely And Safely (Removal Guide)

I was downloading a program and this gameplayinfo.org webside managed to get into my system. Each time I log into my computer, instead of getting to see my own homepage, this gameplayinfo.org homepage will appear. I managed to uninstall the its program and also with the help of Microsoft Security Essential cleaning up this program, but it still continue to replace my personal home page every time I log into my computer. Is there any way to get rid of this gameplayinfo.org page and rid of the bug?