Windows Brick

Windows Brick was a 1986 program of Windows, and supported 1.0, 2.0 and 3.0 and The 3 versions actually had the same startup sound.

It was unreleased before 1986 and stayed unreleased. Until the 1990s. It was the rarest computer ever in the 1990s, making it unreleased after 1 day of development. Development ended in 1990s of 1 day

Where I got the idea?
I got the idea on YouTube