[Yutaka Emura]

Using the Registry Editor (regedit.exe), locate to HKEY_CLASSES_ROOT\.txt and if you don’t see a key:

HKEY_CLASSES_ROOT\.txt\ShellNew

craete this key above.

Then create a string value called “NullFile” under the ShellNew key and assign an empty string.

HKEY_CLASSES_ROOT\.txt\ShellNew
  NullFile  REG_SZ  (empty)

Thank you,