TROUBLESHOOT
VOCALOID4 Editor
Verify that your computer has 2 GB of memory or more, which is one of the minimum system requirements of VOCALOID4 Editor.
Also, if any applications other than VOCALOID4 Editor are running, exit the applications and then start VOCALOID4 Editor.
If you are unable to find a solution in the Troubleshooting section, please use the Inquiry Form to submit an inquiry.