I've had various issues on two separate clean installs of Windows 10 in the last two weeks, one of which was the start menu being broken, and the user profile being damaged to the point where I had to do a full reinstall. Official App Store apps don't install for various reasons (Onedrive) or become damaged etc.

I guess this may be a case of 'grass being greener' as suggested by someone else in this thread. I just don't seem to remember having any of these issues on my 2010 Macbook Pro running El Capitan. Then again, this is purely anecdotal.