Some simple improvements,,,,
I like the idea of MS adding a far more in depth wizard on installation of Windows. A whole page on data sharing with pros and cons for each thing shared. In fact this is a must and I would suggest that they retro-fit it to Windows 10 a bit like the browser choice they had to before.
As for drive encryption a section of a screen saying "Do you want to encrypt your drive? It'll make it more secure but a tiny bit slower and if you forget your password you could lose access to your files". And if they say yes then a bit that says "You will need a recovery file in case you forget your password - do you want to a: print it, b: save it to usb or c: store it on a Microsoft server".
How easy would that be? In fact I don't see why they didn't do it. If you phrase something well then 99% of users can understand it. MS even have the resources to do a little explanatory video on all these things.
Now I think about it - why not add in options for accepting updates or not - just give people the option and explain the consequences of not accepting them.
I like Windows 10 - I really do - but a little spit and polish is needed.