SG TCP Optimizer is a free software that allows you to tune and optimize your internet connection. No need to install, just download and run as administrator.
It is a software that both novice users and advanced users can easily use it without problems, as it has a very intuitive interface. Just do a quick Google or YouTube search and you'll find several tutorials teaching you how to use it.
TCP Optimizer uses advanced algorithms that detect your connection bandwidth delay to find the best TCP/IP parameters for your connection speed.