The microsoft released an ISO with Update 1 but are still made more than 1.5 GB of updates. I used the above methods to convert the image ESD, integrating atraver updates from Windows Updates Downloader (first .net framework, then security updates, after non-segurity update after optional updates).
But after I created the iso, she's boot and lock ..
slipstream updates into win 8.1 iso (upgrade version)
in Unattended Windows 8/Server 2012
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