11. When I install the Optimizer, will it change my settings ?

The SG TCP Optimizer does not change any Registry settings on its own, just the ones you choose and "tell it" to. The program does not require "installation", you can simply run/move/delete the program anytime you like. Still, it's just a tool and should be used as directed: if you're not sure what you're doing, if you don't use the recommended settings and enter some strange values in your Windows Registry that crash your system and melt your MoBo, don't blame us :D.