Microsoft has over-complexed it. Everything can be done much more easier than it is done by MS usually. :)
But this thread is about keeping computer fast. And if you don't want your computer to be fast anyway, then it's not really relevant to this topic. I have worked on computers that have mega-hardware but are full of bloatware and lag like hell. So I think getting rid of unnecessary stuff running all the time is a good thing to do.