Notepad utf-8 as Default

1. Right click -> New -> Text Document
2. Open "New Text Document.txt". Do NOT type anything!
3. Go to "File -> Save As... " and choose UTF-8 under "Encoding:", press "Save" and overwrite existing file. Close the file.
4. Rename "New Text Document.txt" to "TXTUTF-8.txt"
5. Copy "TXTUTF-8.txt" to "C:\WINDOWS\SHELLNEW"
6. Go to "Start -> Run..." and type
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regedit
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Press OK.
7. Navigate to
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HKEY_CLASSES_ROOT\.txt\ShellNew
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8. Right click in the right window -> New -> "String Value" and rename it to
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FileName
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9. Double click on "FileName" and put
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TXTUTF-8.txt
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into "Value data:" field and press OK.
10. It's finished.
11. Test it: Create new .txt document (Right click -> New -> Text Document). Open it and go to "File -> Save As... " and see that encoding is set by default to UTF-8 . :-)

Credits go to Robert Clemenzi and his explanation of "FileName" string (and its linkage with "Template directory") within registry:
http://mc-computing.com/WinExplorer/WinExplorerRegistry_ShellNew.htm

NOTE: These steps are ONLY for creating new and blank UTF-8 .txt documents. If .txt is already saved with ANSI encoding, it will stay ANSI when saving it next time - so if UTF-8 is needed (in this case), it must be set manually.

P.S. Also change "fSavePageSettings" & "fSaveWindowPositions" DWORD values to "1" within following registry key:

HKEY_CURRENT_USER\Software\Microsoft\Notepad

Info: http://www.pc1news.com/saving-changes-to-notepad-configuration-1216.html

https://answers.microsoft.com/en-us/windows/forum/windows_7-windows_programs/default-utf-8-encoding-for-new-notepad-documents/525f0ae7-121e-4eac-a6c2-cfe6b498712c