Here are three simple introductions:

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1. Right-click the blank space of the mouse, and a dialog box will pop up. Click "New--Notepad" on the dialog box, just like creating a new folder.

2. Click "Start--Programs--Accessories" under the taskbar to find the Notepad application, and double-click it to open Notepad.

3. Open by running, also click "Start--Run" under the taskbar, and enter the notepad command in the run input box. Execute this command to open Notepad for editing.

run

Basically, these three methods can open the Notepad application. If you cannot open your Notepad using these three methods, it means that your computer is not working properly. Consider whether it is time to change your computer.