It seems there is no supporting information or answers on this error yet, so far. Well, anyway, I have some other details about this "runtime error 9" thing. At first, Tibed ran perfectly on my windows 10, x64 without any errors. The runtime error 9 happened after I updated and installed some Visual cc++. So it seems that Visual CC++ also caused this runtime error 9 (CMIIW) Unfortunately, I did not know which Visual CC++ that caused the error. I'll try to uninstall them one by one to check whether or not that those software have conflict with Tided. I'll update here if this way can solve the problem.