Not sure what you are talking about. I suggest this gets moved to the Sonar forums for troubleshooting.
This looks like a system specific issue I do not experience this issue.
Can you provide more specific details please.
Go to the windows event viewer and paste any error messages.
My first thought here is that your virus scanner is conflicting, or you may even have a virus on your machine. You might even need to run chkdsk but without any detail haven't got a clue.
VST scanning is part of the package. It does in fact it does run standalone so this is not a feature request.