Re: will my nokia 635 still interface with my laptop if i go with windows 10?
Do you mean going with Windows 10 on your laptop or phone? Either way, it should still work unless you're upgrading to Windows 10 on your phone and still have XP on your laptop.
Unless there is a more specific issue you are worried about, the quick answer is yes. I have a 635 and it didn't have any issues with my older laptop with Windows 10. Since then, I am running Windows 10 on my 635 and things are still fine.