instead of notes I have ''?''

Did you change your locale?

You will need to completely uninstall UTAU and delete all related files, such as the installer.

Follow these instructions to change your system locale to Japanese: https://www.java.com/en/download/help/locale.html
Make sure the beta option for using UTF-8 is disabled. You do not need to change any other settings, like language or region. Your computer will stay in your preferred language.

After your locale is fixed and you've restarted your computer, you can redownload the installer and reinstall UTAU: http://utau2008.xrea.jp/

If that didnt work, then

1. Click Start then Control Panel
2. Click Clock, Language and Region
3. Windows 10, Windows 8: Click Region
   Windows 7: Click Region and Language
   Windows XP: Click Regional and Language Options
   The Region and Language options dialog appears.
4. Click the Administrative tab
   On Windows XP, click the Advanced tab
   If there is no Advanced tab, then you are not logged in with administrative privileges.
5. Under the Language for non-Unicode programs section, click Change system locale and select the desired language.
6. Click OK
7. Restart the computer to apply the change.