Download Windows 1.0 .iso Fast and Easy Today!

Windows 1.0 is a 16 bit operating system that was released to the market on November 20th, 1985. It continued to be supported for 16 years, until December 31st, 2001. (So the support is no longer available). 

Features

Windows 1.0 is often regarded as a "front-end to the MS-DOS operating system", a description which has also been applied to subsequent versions of Windows. Windows 1.0 is an MS-DOS program. Windows 1.0 programs can call MS-DOS functions, and GUI programs are run from .exefiles just like MS-DOS programs. However, Windows .exe files had their own "new executable" (NE) file format, which only Windows could process and which, for example, allowed demand-loading of code and data. Applications were supposed to handle memory only through Windows' own memory management system, which implemented a software-based virtual memory scheme allowing for applications larger than available RAM.

Downloads

Windows 1.01 (.ZIP)
Windows 1.03 (.ZIP)
Windows 1.04 (.ZIP)

After that you can just put the file on a Floppy disk or a CD-ROM and install Windows 1.0 on a computer, or you can use Virtualbox to emulate it.

As Windows 1.0 does not require a CD key to be installed or to continue using the software, you can use it permanently without having to purchase any product keys. Also, since the software is considered abandonware, it is legal to use! (So no need to worry about anything illegal)

Info

Developed by: Microsoft Corporation
Release date: November 20th, 1985
Latest version: 1.04 (Released in 1987)
Source model: Closed source
License: Commercial software
Succeeded by: Windows 2.0 (in 1987)
Support status: Unsupported as of December 31, 2001
System Requirements:
CGA/HGC/EGA Monitor
MS-DOS 2.0
128 KB of RAM or higher
A 1.2 MB Floppy, or a hard drive with at least 1 MB of space available.

Screenshots