To make Notepad files always open in a new or separate window in Windows 11, open Notepad setting and change the 'Opening files' option.

Command Prompt and Windows PowerShell are also simple and built-in options covered in this post for this purpose. We have already seen how to open a file or folder using Command Prompt or PowerShell.

Need to use third-party programs to open files on your PC? Here's how to change file associations in Windows 10 and choose which apps open which file types.