Microsoft Windows 1.00

Not to be confused with Premiere Edition.

Windows 1.00 was released in November 6, 1985.

Premiere Edition
There has been much debate in the community whether or not the Premiere Edition can be considered version 1.00. The build itself and its associated applications don't actually identify as version 1.00, instead of using the name Premiere Edition consistently. The only trace of version 1.00 are the system files  and , but these persisted into later releases as well (as   and  ).