This is the earliest Windows 8 build known to contain the full-screen Start menu that can be
unlocked with Redlock. (Other hidden features can be unlocked in this or other builds too)
This build does not require a product key but some users have reported being prompted to enter one
(we can't verify the authenticity of those claims since they were from 2010 and we haven't been
able to recreate that issue) but many users that were prompted to report that the following key
will work:
HYF8J-CVRMY-CM74G-RPHKF-PW487