Is Chrome superior to what I use? Perhaps, but it is a personal choice.
I am not a personal fan of Chrome - lots of people in the world cannot live without the Chrome browser.
The truth is that every computer is different - aside from the basic programs, you might be running stuff on your computer that I would consider unwanted. Software programs that start automatically and what they do Check at the end of the file under section: Way down in the information is a linked document that contains a table of "do not touch" programs and services. The document presented vyf Karthik does include a great deal of information - and most of it is indeed relevant to any recent version of Windows, including your Windows 7.