Installed the latest Win 10 driver...Show up in the utility as mid channel 11
The editor or reaper cannot see it or the drivers... any help appreciated
Have been using it fine for a few months before the update
Do you mean MIDI Channel 11, or MIDI Device 11. Windoze has a 10 device limit for USB MIDI devices. Drivers will need to be removed if not being used. Consider also, that plugging the microStation into different ports will result in a driver association, and MIDI driver install for each port, thus eating into the 10 device limit. The 10 device limit can be quite quickly used up in this manner. It's best to plug each particular USB MIDI device to the same USB port every time.
There should be a "Uninstall KORG USB-MIDI Device" in the Korg Programs folder. Use this to remove the unnecessary duplicate entries.