I collected files from internet. And did as suggested by op.
my opinion:
Its really a highly refreshing change from 8.1.
I wanted the edge browser badly to stay on windows. I have it now.
Everything is faster and smoother. Eg whatsapp and fb much smoother now.
seems like a new phone with new system altogether.
Soundalive is still here under settings/extras. High five!! Am a bass head.
There is no point in going back. Its so much beautiful and advanced as compared to 8.1.
Last, cant thank op enough for this. Just google " windows 10 on ativ se" his is the first link. One doesn't have to research endlessly to install 10 on ativ se. High five again
thanks a lot to all who put together this wonderful piece of work.