Windows 1.0 is a graphical personal computer operating environment developed by Microsoft, released on November 20, 1985, as the first version of the Microsoft Windows line. Version 1.01, also released in 1985, was the first point-release after Windows 1.00.
Screenshots from Windows 1.01:
⇰ Desktop
First Run

Empty Desktop

Desktop With Applications

⇰ Office Applications
Notepad

Text Editor

Calculator

Calendar

Clock

Address Book

⇰ Multimedia Applications
Media player, CD player, Volume level, and Sound: This GUI doesn’t have these features.
⇰ Networking Applications
Terminal

Phone Dialer: This GUI doesn’t have this feature.
⇰ Internet Applications
Browser, and Mail: This GUI doesn’t have these features.
Browser, and Mail: This GUI doesn’t have these features.
⇰ Accessibility Applications
Keyboard Map: This GUI doesn’t have this feature.
⇰ Settings
Desktop themes, Display, Screensaver, Keyboard, Mouse, Accessibility, Power Management, Settings menu, and International Settings: This GUI doesn’t have these features.
Time and date: This feature can be found in the General section. The only customizable feature was the double-click speed.
General

Appearance

⇰ System Managers
Application Manager: This feature can be found in the File Manager section.
Task manager: This GUI doesn’t have this feature.
Task manager: This GUI doesn’t have this feature.
File Manager

Running Applications

⇰ System Features
Help, Search, and Trashcan: This GUI doesn’t have these features.
Help, Search, and Trashcan: This GUI doesn’t have these features.
Run


⇰ System Utilities
Command Prompt

⇰ Startup & Shutdown
Login and Logout screen, Shutting down, and Shutdown complete: This GUI doesn’t have these features.
Welcome splash

Shutdown Window

⇰ Installation
License: This GUI doesn’t have this feature.
Welcome screen

File Copying

Installation Complete

⇰ Dialogs
Color Selector: This feature can be found in the Appearance section.
About GUI

About Application

Font selection

Open File

⇰ Miscellaneous
Wrong password: This GUI doesn’t have this feature.