Build 6730 is notable for being visually closer to the final Windows 7 product than earlier Milestone builds, yet it retains several vestiges of Windows Vista.

The iconic Windows 7 Taskbar, internally designated as the , was kept hidden behind an internal protective layer code-named "Bluepill" during Milestone 3. When unlocked by enthusiasts using specialized modification tools, Build 6730 revealed that Microsoft had completed the underlying code required to support small taskbar buttons within the revised Superbar interface. 5. Deprecation of Legacy Components

The most defining feature of Windows 7 is the redesigned taskbar. In Build 6730, the "Superbar" is present and largely functional.

This build marked the official end for several Windows Vista elements. The highly criticized Windows Genuine Advantage (WGA) severe "reduced functionality mode" was permanently removed, aligning instead with the gentler notification behaviors of Vista SP1. Additionally, the infrastructure for from the operating system core during this compile. Documented Bugs, Flaws, and Quirks