Hi
One of the things that's different in Windows 10 is how you get to a lot of things.
It's kind of driving me crazy, but I've found that a lot of time the easiest way is to type it into the search box on the taskbar.
I typed "Startup" in the search box and one of the options I got was, See which processes start automatically when you start".
This opened Task Manager which has a Startup tab.
Not the way I used to do it, or where I found it.
In fact when I looked for it in the old place (in msconfig) I found a message that said, "Use the Startup items section of Task Manager.
Try this for other things as well, I've found that I can get to most things by typing it in.
Also note that you can access a lot of things from the right...