@PeterJones said in How to open documents in different windows?:
Settings > Preferences > Multi-Instance and Date > ☑ Always in multi-instance mode – every time you use Windows Explorer to double-click on a file (or similar) to open it with Notepad++, it will go in a new instance. (This will not change the behavior of File > Open inside Notepad++, which always opens in a new tab, not a new instance.)
Thanks for the answer.
Everything works.
Issue resolved.
Notepad++ is my favorite text editor.
Special thanks to you for the clarification about the publication of posts and for additional information on the topic of the question.