Do that, boot it on your PC, delete all partitions, create a single partition the size of the drive (Windows may create several additional smaller partitions, that's normal) and then install Windows into the largest partition (it's selected by default). As I said earlier, you can make a bootable USB stick via the Windows Media Creation Tool on another PC. You really need to do a completely clean install of Windows from bootable media - that's the only logical next step. This leads me to wonder whether the Windows 'reset' feature you're using and/or the installation files the 'reset' is using are suspect in some way.
It's my experience that it should, at least in a limited way (you should be able to move the cursor at least). We know that your touchpad doesn't work when you 'reset' Windows. We know that the touchpad was working fine before you did the first reset - so it's unlikely to be a hardware issue. We know that the backlight doesn't work, that might be a hardware issue and although it's what started you on this path at first it's a minor issue at the moment. Sometime when troubleshooting I like to step back and summarise what we know (and what we don't).
