https://support.microsoft.com/en-au/kb/3081048

Updates required for 7:

3035583
2952664

Updates Required for 8.1
3035583
2976978
2919355



wuauclt.exe/updatenow

Runn "ReserveWindows10" batch file
(Reserve icon will come up in taskbar)

http://answers.microsoft.com/en-us/windows/forum/windows_10-windows_install/error-code-0xc004c003-clean-install-after-upgrade/f75d5661-6cd3-4915-b72f-6d096608ba32