Windows 10 Developer Preview

Windows 10 Developer Preview is the Windows 10 Pre-Beta, a simple view like the Windows 8 DP with the same logo (that of Windows 7 in the metro style) but with integration of the hybrid start menu, cortana and the search button, Multi-desktop and many more functions.

Builds
Found in the Builds 8036, 8061, 8090, 8105, 8115 and 8134.

History
In May 2012 the latest Milestone 3 version of Windows 10 was leaked with a new Aero theme and the search button, after this version the development was paused until October 2013 with the first Windows 10 Developer Preview, it was not very different from the last Milestone 3, with small changes such as wallpaper and animation when opening the metro apps, and running the metro apps in medium size as if it were any program, the build 8061 and 8090 were not very different, which changed most things was the Build 8105, with another new wallpaper, a new start button, the name change from Microsoft Spartan to Microsoft Edge (although it still had the same icon as Internet Explorer) and all the features mentioned in the first Three lines of introduction, the following builds had performance improvements and minimal improvements.