Hi
This sounds like it's just getting to a point where something isn't loading, since it has happened twice it must be something that Windows 7 is bringing along.
There is a way to directly install Windows 10 without going the upgrade path but you will have to have Windows 7 installed and running to do it.
I haven't tried this myself but everything that I've tried from this source for years has always worked.
Since you are going to have to reinstall Windows 7 anyway you could try this after making a System Image so you don't have to go through the process of reinstalling Windows 7 again it things go wrong.
Clean Install Windows 10 Directly without having to Upgrade First
Make sure you are updating to the appropriate version...