If you're building Windows 10 Universal apps you should hold off until Windows 10 is released on the 29th. I just ran the VS2015 Community installer and it prompted me to remove the Windows 10 Universal Apps Tools RC.
Ah. I'll wait until I upgrade this computer to Windows 10. I will follow up with a clean install of Windows 10 if the nVidia drivers don't act up. Thank you!
It's funny, but I started a user profile signing into a VS2013 version.. I had to reset my environment in order to get around some really buggy behavior in VS2015-RC ... that said, I do like most of the recent changes.