What is the first version of Microsoft windows, and when released?

Microsoft Windows version1.0 which is released on November, is the1st version of Microsoft Windows

The first version of Windows, released in, was simply a GUI offered as an extension of Microsoft’s existing disk operating system, or MS-DOS 

The first  version of Microsoft Windows, version1.0x, released on November,

Date of copies back windows to September 1981

This first version was the first try of copy of Apple OS.

The question is have used it?

I did, it was an usuable DOS window

Bill Gates announces Microsoft Windows November 10, 1983.

Windows 1.0 was released on November 20, 1985, as the first version of the Microsoft Windows line. It runs as a graphical, 16-bit multi-tasking shell on top of an existing MS-DOS installation, providing an environment which can run graphical programs designed for Windows, as well as existing MS-DOS software.

thes Micosoft ms-Dos  in 

It was Microsoft 1.0 and released in 1985