Windows Longhorn build 4005

Windows Longhorn build 4005 is a Milestone 4 build of the Microsoft Windows "Longhorn" operating system. Two screenshots of this build have been posted on the BetaArchive forum, but more screenshots from TCB can be found, including the setup. On 2020-01-23, this build was listed on a thread by UX.Unleaked blog founder Grabberslasher to be released to the BetaArchive FTP, and was released in the second set of 33 other Longhorn builds on 2020-01-25, alongside build 4039 (Lab06 n.030824-1954) and the Home Edition of build 3790.1232.

This build is a major update from previous builds such as build 4001, including an updated .WIM installation. This build uses the new branding in "winver" but still retains the Windows XP boot screen.

New features

 * The setup has been updated, making the setup less basic than in build 4001. It can also partition a drive correctly.
 * A new desktop background is used, resembling the Milestone 5 wallpaper but with the Longhorn logo instead of the Windows logo.
 * This build also changed nearly all references to Windows XP removed by this point, most notably the logo shown within the About Windows dialog box, which was replaced by the Longhorn logo, showing the copyright date, 2006 (this shows that obviously, Microsoft was planning quite far ahead for Longhorn even at this point). Windows XP is still referenced in the boot/safe to shutdown screen, in the Help & Support Center, and in the Windows XP Tour.

Bugs and quirks

 * Unpartitioned drives cannot be selected for installation in the setup. To setup from a hard drive without any partitions, select the disk that Windows will be installed on.