I attempted to install the latest build on my work laptop that had already been running running the development preview but I received the error message:
Windows failed to install the following update with error 0x80070522
This exact same error seems to have existed in the transition to Windows 8.1 and was due to the system being domain joined. I removed my system from the domain and rebooted it. At that point I was able to install the new build and rejoin the system to the Active Directory domain.