Windows 8 build 7973 (fbl core2 sid data)

Windows 8 build 7973 (fbl core2 sid data) is a Milestone 3 build of Windows 8. This build was only leaked as an x64 checked/debug version. It bears little difference to the previous build.

Aero
This build appears to have a slightly broken Windows Aero theme, with only the top portion of the window frame using the blur effect, leaving the side borders transparent.