It is far too many start ups, but leave your services alone unless you know what you are doing.
To change start ups in msconfig just untick any that are not needed to start. You don't loose them they just don't start until you want them, then reboot your computer.
You may get a message saying you have changed start ups, just tick the box "Do not show this again"
Untick as many as you can leave your operating system and Anti virus alone