I am using arch as reference for a difficulty scale since most of us have already tried installing arch.The point is it's difficult in using KDE neon without proper knowledge.
Before even commenting this do you even know what KDE neon is ? It's a distro , I would recommend to intermediates than newbies because of the troubleshooting you need to do everytime when updating.Arch was more easy than using this.
Sorry if I confused you there it is ubuntu LTS in the base but the KDE desktop is rolling that's the only difference so semi-rolling would be the proper word.And I said fedora since it is updated more frequently than ubuntu LTS.
Well the hardware he has better support on the recent releases.KDE neon wouldn't be a good choice for it and kde neon is a rolling release of KDE so there are more bugs than normal ubuntu
First are you using the latest arch iso then get that then check if there are updates for archinstall and is windows fully shutdown
i.e do you have fast startup enabled or not if so disable it .
Oh nice to know.