Also, a word of caution for those that rely on OneDrive storage.
The OneDrive client on Win 10 breaks a feature that many people rely on - local place-holders for online-only files.
Previously one could mark selected files and folders as online-only, which would remove those files from local storage (freeing up room on your local storage), leave them stored on the cloud, and also leave place-holders on the PC so you could locally browse the entire contents of your OneDrive. Win 10 breaks that simple functionality

I hope they bring it back soon.
http://www.zdnet.com/article/testers...onedrive-sync/
This is an old article from 2014, but I can confirm that the issue still persists.