Tips on installing your operating system

I have been working and observing my operating system this time because I want to explore more on its features and the benefits that I can used by the way, I am using a windows vista. i would like to share some of my tips in using different types of operating systems. I have been through to many windows operating system starting from windows 98, 2000, ME, XP, Vista, and its sub classes. I can say that the best is XP among all because of its light in running different applications compared to other OS when you use it slows your navigation due to heavy applications while some negative effects are .. it doesn't run on other applications such as deep freeze softwares and others because there are some applications that does not supports the Vista type of OS. I would like also to add that if you have to choose your anti virus for security protection make sure that you choose the light type of anti virus because most of these anti virus are the ones that cause lag effect on rebooting and slowing your computer performance.