Windows Longhorn build 4020

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6.0.4020.idx02.030507-1155
Build of Windows Longhorn
6.0.4020.idx02.030507-1155
OS family
Architecturex86
Compiled2003-05-07
Timebomb2004-07-25 (+445 days)
Works in
About
WindowsLonghorn-6.0.4020-About.png
SKUs
Professional
Key
CKY24-Q8QRH-X3KMR-C6BCY-T847Y
TCB.png TCBGallery.png

Windows Longhorn build 4020 is a Milestone 5 build of Windows Longhorn. A screenshot of the build was leaked on the BetaArchive Discord on 2018-11-27. Longhorn.at.ua also have a few images of this build[1]. On 2018-12-03, this build leaked to BetaArchive FTP by ReflectiaX, along with 4032.

This build is very similar to build 4015 (main), however there are some minor changes. The Windows Explorer no longer leaks memory, the OOBE is now completely skipped, and the Desktop Composition Engine is broken. Alongside, this builds refers itself as "Longhorn" instead of "Longhorn XP". The sidebar is given a minor change to take up the whole side, including the bottom of the taskbar, shifting the time to the left of the sidebar instead of under. The most notable newest change is the notifications, which now uses the new design from build 4029, which features a more sleeker design and the notification icon on the side bouncing up and down when hovered.

Hidden Dialogs[edit]

There are a few dialogs that cannot be accessed normally. They are:

  • Security Preferences - Allows you to set preferences for security. It does not seem to have any effect.
  • Installer Warning Dialog

Hidden Sidebar Tiles[edit]

There are a few sidebar tiles that are disabled by default in this build. They are:

  • RMA Test Tile - In this build, it only shows the title of the tile, and nothing else is there.
  • Longhorn Status - By default links to [1]
  • Messenger Status Tile - This tile only works if you are using Windows Messenger. You cannot use MSN Messenger with this tile. Also, this tile does not work with Windows Messenger 4.0, you will need 4.6 or 4.7 for it to function correctly.

Bugs[edit]

Installation[edit]

The installation media is not bootable, you must upgrade to this build from an earlier version of Windows.

Desktop[edit]

If you uncheck "Show Desktop Icons", you will not be able to right click or drag select on the desktop.

Gallery[edit]

References[edit]