Notepad++ - This is the definitive notepad-related software you’ll ever need. Multiple tabs, keeps tracks of lines, lots of features and preferences. One of the most invaluable parts of it, is that you can close it or a update happens or maybe your PC will get knocked offline. You can come back to Notepad++, open it, and everything will be retained.
I find somewhat funny how every time a text editor is mentioned everything else gets drowned or cast aside.