Windows 10 video editor is about as lite as it gets, and its pretty decent...from the start menu...If you just click on your video, to play, you will noticed at the bottom of the window a pencil icon, click it and you have a few choices like trim.
My computer is rather old, so what I do is I use windows 10 to trim and cut my footage, and its fast, (4k, 60fps) Then use those "good" files in Davinci, (takes an eternity to trim raw videos) and then put everything together.
Point being: Use windows 10 to cut and trim your videos into good segments, then use those in an editor or heck Windows 10 video editor is ok.. Mess around with it, its free and its already installed. Good luck...
WAIT, I did forget something, you will have to purchase the hvec codec, from the windows store, to watch and/or edit raw videos, it costs 99 cents. If windows don't play your videos it will give you links to the proper codec in the store.
Or you can search for it and purchase and install, from the store. It is well worth a dollar!!!!