I am not very familiar with your route but their my have been many miles of "Dark Territory" on it, at least in some areas. So that means no need for...
I'm not reinstalling on the main drive C:\ just trying to fix this , MSTS is on drive F as 1MSTS. I'll look in the registry for that code and we will...
well, I found out the problem the hard drive did not register MSTS properly so needed to reinstall to the main drive and leave the game on the other...