This logo was seen in an early pre-release build of Windows 1.0 dated as being compiled on February 22, 1984. It was originally shown in the May 1984 issue of the Japanese magazine 月刊アスキー (which translates to "Monthly ASCII").
June–October 1984 (unused)[]
Designer:
Unknown
Typography:
Unknown
Launched:
June 1984
This logo was first seen in Windows 1.0 Development Release #2, compiled in June 1984. It was also seen in the "Tandy 2000" builds throughout mid 1984, and was used in Development Releases #3 and #4.
1984–1985 (unused)[]
Designer:
Unknown
Typography:
Unknown
Launched:
October 31, 1984
This logo was seen in Windows 1.0 Development Release #5, compiled on October 31, 1984.
January–July 1985 (unused)[]
Designer:
Unknown
Typography:
Unknown
Launched:
January 31, 1985
This logo was first seen in Windows 1.0 Alpha Release, compiled on January 31, 1985. It was included in other pre-release builds after this, but was removed in Windows 1.0 Premiere Edition, compiled on July 30, 1985.