How to tune up a computer for free with TuneUp360?

How to tune up a computer for free with TuneUp360?: "If you computer is slow such as takes long time to start up, response and run programs, TuneUp360 will help you to tune up it with only 1 click. It will remove junk files, clean registry redundancy and optimize Windows settings to speed up your computer and network in 3 minutes."