How to kill these processes? (Windows 8.1)

[Rerednaw]

These are Windows processes that I need help finding.
They are immune to Alt-F4 and I do not know where they are in Task Manager.

For example:
Right now I have Chrome, Desktop running AND:
1) Search.
2) PC Settings.

Even though the two above are blank, I cannot turn them off.

If I start using Alt-Tab they are still there.
Where are they and how do you turn them off?
Not the end of the world but I like to limit extra processes especially when I am not using them.

Thanks.

 

[Ketchup]

It's been a while since I spent much time with 8, but I have two educated guesses:
1. Search runs all the time, whether or not you are "in" it, it's always ready. PC settings you may have been in earlier, so stayed in the background for faster launching later.
2. You also may be running an app the uses one of both of these features. Hence, they have to run what the app is running.

In either case, I seriously doult either one of these is using enough resources to be noticeable.

 

[PliotronX]

If you right-click in task manager on the applications and go to process, try using the PID in a command prompt as admin and run taskkill /pid #here /f