This was the mistake I was making before mashedmitten, (thanks very much,) helped me resolve the hang when adding my vst or jbridged folder to the VST 2.x Plugin Path.
Adding then restarting was the ticket - bypassing Update altogether.
I’m editing this post “Little Help - Hang/Adding VST Folder” with the hope of saving others some frustration.
This is what was happening:
In C6 > Devices > Plug-in Info > VST 2.x Plugin Path >
I add my vst folder (location C:/Programs Files (86x) Steinberg /Vstplugins) /Click Update.
C6 hangs. Must force quit.
This behavior also is the same when selecting My Jbridged vst folder - same location.