I think Microsoft believes people are too stupid to leave space free for updates, so they are doing it for them. I saw the screen shot of the feature on thurrott.com, and it looks like something that Android has. It tells you free space that you can use, and then it says xxx GB of System Files, and you can't use that storage. Soon, people will be too stupid to know where to save files, so Microsoft will do it for them, in the cloud. Scary stuff!