Windows Longhorn build 4086 (Lab03 dev)

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6.0.4086.lab03_dev.040629-1910
Build of Windows Longhorn
6.0.4086.lab03_dev.040629-1910
OS family
Architecturex86
Compiled2004-06-29
Timebomb2004-12-12 (+166 days)
Works in
About
WindowsLonghorn-6.0.4086-lab03-About.png
SKUs
Professional
Key
TCP8W-T8PQJ-WWRRH-QH76C-99FBW
TCB.png

Windows Longhorn build 4086 (lab03_dev) is a Milestone 7 build of Windows Longhorn. 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 later released in the tenth set of his 33 Longhorn/Vista builds on 2020-02-02 with its other compiles.[1]

Bugs and quirks[edit | edit source]

  • Partition and format a drive from a previous or later build prior to starting installation.
  • CD and DVD drives behave like local disks.
  • The Windows Classic theme will not function due to a broken Windows Classic.theme file.
  • Safe mode is broken and displays a BSOD.
  • WordPad and Outlook Express won't start due to bugs.
  • Opening Help and Support results in an explorer.exe crash.
  • Windows Explorer will crash when shutting down.
  • The video card cannot initialize after installing drivers. As a result, the system will not boot and will display a BSOD instead.

Gallery[edit | edit source]

References[edit | edit source]