Guys,
I'm SOO embarrassed I don't know this off the top of my head, except that every time I have to do this task there's so much water under the bridge I can't remember.
So, I just completely reformatted my SSD and put Win10 Pro on it. I have ST3.5, as well as ST2.5.4, SonikSynth (latest), Miroslav Orckestra (latest). They're all installed on 1 other partition, so all I have to do is install those legacy apps, then point those directories in ST3.5 to the proper directories. I went to manual and it says that directory should be in C:\User....
If I could just get a clue what the name of those directories need to be when setting up ST3.5, and where they need to point I promise, promise, promise I will frame your answer and hang it on my studio wall so I'll never forget again.
Tnx,
GPL