Windows 8 tweaks and manipulation exposed and how to do it

Hi!
I just switched from Windows 7 to Windows 8.1. I am just new using this platform. I would like to ask what are the different secrets in this operating system. Can you tell me how to change the setup of my menu in this system? Can you give me step-by-step instructions on how to do it? Can you give me multiple samples on what are the tweaks that I can do with my Windows 8.
Thank you!
