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.

How to Convert a File From ANSI to UTF8. ANSI and UTF-8 are two types of text encoding. The former is the default encoding that is used when you save text files created in Notepad, the text editor ...