I've recently understood that the GraalEditor does not work for Windows 10. There seems to be a problem with the ''ntdll.dll'' file.
I tried finding solutions on google but without success, updating my .dll files did not help, so I tried to downgrade back to windows 7, then it started again. I'd like to bring your attention to this needed update for Windows 10 users on new PCs.
Or if you found a solution, please reply to this thread, I'd like to learn more about your solution, since I'd like to keep my PC on Windows 10.