I was wondering with all the things that are required for these jobs, certs, cis degrees, etc. What should you really know to work on windows pc's? It seems like there is some kind of hidden language that is needed to be understood just to work with them, or geeks at the computer repair shops act like it. Are there special tools inside of windows that you won't know about unless you are educated about them? What is it really? Is it just a method? Is it a special toolkit? I have looked for books that teach computer repair but they don't really seem to specify what one should really know about the O.S. And I can't get my hands on an official MSCE book without taking a course at a technology center, paying out a few grand just to look at it's pages. What gives, can someone enlighten me as to what that's all about? What do these certified engineers know that we don't? What's inside the O.S. that is so mysterious? Thanks in advance.