Screenshot leak shows 9478 Windows 8.1 build is now in RTM branch August 12, 2013 by admin Tweet A newly leaked screenshot shows that the latest build of Windows 8.1 from Microsoft, 9478, has now entered into the RTM branch, which means that an official RTM announcement could come at any day. Read more… Neowin Related Posts:KB5037941: Microsoft quietly releases Windows 11…Microsoft rolls out Windows 10 build 21387 to Dev…New screenshot shows off how edited tweets will look…Newly leaked video allegedly shows an upcoming AI…Microsoft releases Windows 11 build 22000.176 to the…