Notepad is a simple text editor application that comes pre-installed on most Windows operating systems. The Notepad window has a very basic design and includes the following elements:

1. Title bar: The topmost part of the Notepad window displays the name of the application (Notepad) and the name of the file that is currently open.
2. Menu bar: Below the title bar, you will see the menu bar that contains various commands like File, Edit, Format, View, Help etc.
3. Toolbar: Below the menu bar, there is a toolbar that provides quick access to commonly used commands like New, Open, Save, Print, Cut, Copy, Paste, Undo, Redo etc.
4. Text area: This is the main area of the Notepad window where you can enter and edit text. The text area is a white space in the center of the window.
5. Scroll bar: On the right side of the Notepad window, there is a vertical scroll bar that allows you to navigate through the text area.
6. Status bar: At the bottom of the Notepad window, there is a status bar that displays the current line and column number of the cursor, as well as the encoding format of the document.

Overall, the Notepad window has a simple and straightforward design that allows you to quickly create and edit plain text files.