You can change the default Character Encoding in Notepad from UTF-8 to ANSI, UTF-16 LE, UTF-16 BE, UTF-8 BOM. using Registry Editor.

Displaying Unicode in Notepad. If you have viewed a Web page containing strange characters you did not understand, you may have seen Unicode characters.

CatchCar is a Windows freeware that lets you insert Unicode and special characters in Notepad, Word and other documents, via your right-click context menu.

Some weirdness with viewing Unicode glyphs, even on a machine with fallback fonts. A font with full fallback for every Unicode code point still won't show anything but a square for some things. Try ...

Corruption when editing a line containing Unicode characters Some Unicode characters can be copy-pasted in Notepad++, but they turn to blocks when entering a newline between them.