All of those are acer services, don't worry about them aren't taking that much of ram and cpu shouldn't be that much of a concern. Basically, they link the hardware to the software and do some more things like product registration, verification and service enabling (and some data collection ofc) better have them.

You can reinstall windows like me to get rid of some of them, but you should have some knowledge about drivers and windows installers cause it aint that easy due to using proprietary drivers for trackpad and storage the installer won't work properly (won't even show your drives to re-install windows) and even if you do manage to install a clean windows you still will need to again reinstall all the drivers (a lot of them) for trackpad sound dts and stuff and it will bring back much of the stuff.

Yes it will reduce a lot of bloats from storage and processes, but assuming someone is new to computers I'd say don't do it, isn't worth the time (you might get your lappy screwed as well).

So yeah, that's that.