The problem happens when they Introduce new options (Vista), Expand the ways and ease of accessing them (Win7), and then trim it down a bit (much, IMO) or shift the actual visual (Win 8) in different OS's. It's been the formula for all Win OS's since 3.1.
The learning curve is always slow...
We can all have the same argument the entire IT community has been having... FOREVER or we can all just agree that iOS et al. Is a GREAT platform for the AVERAGE USER and Android/Win8 etc. Is great for the average to above average user. Not putting anyone down, if you're using your iOS machine...