When was the first Microsoft Windows first introduced?

The first Windows version which included a graphical user interface was Windows 1, which is not very invetively named! The graphical user interface was barely what you could call exciting; the bright green background, disrupted only my overly pixelated icons is not a very pretty sight to look at. There is neither a taskbar nor a Start Menu, as these items are introduced in Windows 95.

The green background cannot be changed, unfortunately. Even worse, the title bars were a horrible shade of blue, and each scroll bar was horribly red, and all these options were unchangable. Microsoft's first operating system with a GUI was Windows version 1.0, released in November 1985. Some do not consider Windows version 1.0 to be an operating system in its own right as it required the installation of MS-DOS first, and was merely a graphical extension to MS-DOS. The first true Microsoft operating system to run independent of MS-DOS was actually Windows 95, released in August 1995.