Microsoft Windows Vista, 6.0.5381.1

In this build the Setup routine has changed again, now it no longer features a long list of what it going on, but only 5 steps remain, and they remain the same, these 5 steps until Windows 8 when it is using the newer installer version.

After installation it is mostly identical, the things you notice are the Sidebar Gadgets, it has been cleaned up, with the previous build it contained double items. Windows Media Player setup has changed its first startup screen.
Also Windows Mail has undergone a major change, it now looks more like the final version.