Sometimes we feel that your machine has more, or slow, or if you suspect what viral Trojan, you will check out what the process takes up in the process manager, but these processes listed Which is the system, what is it, which is not a system, what is it, maybe it is not very clear.
Here are some common processes, you can help us to understand what Windows is busy with us :-)
The following links come from "Potato and His Software Dream"
http://www.oixiaomi.net/systemprocess.html