It’s even easier to enable dark mode in Notepad on Windows 11. Alternatively, you can also enable and customize dark mode on your laptop, which will usually affect multiple apps across the OS.

To turn off overtype in Notepad in Windows 11/10, press the Insert key, and you'll switch back to Insert mode where your text behaves normally.

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