Re: No worries!
Question for you. My Lumia 735 is still on 8. How different (read worse) is 10? And is it worth the upgrade - which I've been ignoring for the last year?
I'd read that they'd changed bits of the nice simple UI, which is why I've not upgraded. And I've not checked into whether it's possible to downgrade again, if I don't like it. Something you can't do with Apple for example.