Windows NT 4.0/4.0.1273.1

From BetaArchive Wiki

Windows NT 4.0 build 1273.1 was leaked by Overdoze along with Windows 95 build 1078 and OS/2 2.1 build 6.504.[1]

Windows NT Task Manager loads with a warning.[2]

References

  1. https://www.betaarchive.com/forum/viewtopic.php?f=16&t=36767
  2. Sigma (@fakirmeditation) (14 May 2021). The earliest versions of the Windows NT Task Manager (Specifically the versions included with the leaked NT 4.0 builds 1264, 1273 and 1287) had this neat little warning pop up on startup.. Twitter. Retrieved on 17 April 2022.