Windows 1.03 and 1.04

Windows 1.03 and 1.04 were the two last versions of Windows 1.0. 1.03 is the successor to Windows 1.02.

Windows 1.03
Windows 1.03 included enhancements that made it consistent with the international release like drivers for European keyboards and additional screen and printer drivers.

Windows 1.04
Windows 1.04 added support for the new IBM PS/2 computers, although no support for PS/2 mice or new VGA graphics modes was provided. However, in May 27 1987, an OEM version was released by IBM, which added VGA support, PS/2 mouse support, MCGA support, and support for the 8514/A display driver. IBM released this version on three 3.5 inch 720k floppies, and offered it as part of their "Personal Publishing System" and "Collegiate Kit" bundles.