Its a very safe tweaking utility that can optimize Windows Vista performance and security in a safe way without causing any harm to your system. You can also undo any changes Vista Services Optimizer has made to your system using Smart Rescue Center.
Vista Services Optimizer can tune up Windows Vista Services by stopping and disabling
unwanted Windows services in an automatic way according to the way you use your
computer, installed hardware and installed software with a single click.
You can use Manual TuneUp to optimize Windows Vista services in a manual way which you can specify the services you want to optimize.