An excellent site to look at tweaks and optimization of your operating system is TweakHound. TweakHound gives step by step guides and hundreds of tweaks – they also help you look at these individually and explain why they are good or bad.
Go check them out.
About TCAT Shelbyville IT Department
The Tennessee College of Applied Technology - is one of 46 institutions in the Tennessee Board of Regents System, the seventh largest system of higher education in the nation. This system comprises six universities, fourteen community colleges, and twenty-six Applied Technology Colleges.