Windows Longhorn build 4031 (main)

Windows Longhorn build 4031 (main) is a Milestone 5 build of Windows Longhorn. On 23 January 2020, this build was listed on a thread by UX.Unleaked blog founder Grabberslasher to be released to the BetaArchive FTP, and was later released in the ninth set of his 33 Longhorn/Vista builds on 1 February 2020, alongside the main lab compile of 4085, the x86 version of 4083, the Lab06_n compile of this build, its Lab07 Server counterpart and build 5520. This build is currently the latest available Milestone 5 build and therefore still uses the wallpaper from the aforementioned milestone.

Setup
Setup is practically similar to previous Milestone 5 builds.

Bugs

 * Upon logging in, an error message will appear, stating that the operating system recovered from a serious error.
 * Many drivers aren't installed by default during the hardware portion of setup and have to be installed manually.