Game Booster is a free application for Windows that will modify settings automatically and boost up the game.
The program offers different tools and options and when you'll play games you'll realize it is worth using it.
Update drivers, change RAM settings, defragment HD, etc.
You can do all this in just one click and once you finish playing, click it again to use the computer as usual.
By this way, Game Booster can be your best partner when playing games on your PC.