Hello joen2010,
Please try the following:
- Make sure that you have all current Windows updates installed. (Use Windows Update to check for updates, apply all available, reboot, then keep repeating until there are no more. Note that you might need to click the 'check for updates' button *twice* before Windows actually performs the check.)
- If it has a dedicated driver (as opposed to relying on the default Windows USB-MIDI driver), then also make sure you have the latest drivers and firmware installed for your MIDI interface/keyboard, and that the driver is listed by its manufacturer as compatible with Windows 10. (Check on its manufacturer's website.)
- Reboot.
- Wait for an extra 30 seconds or so before launching Hauptwerk, just to make sure that Windows has finished loading the driver for the MIDI interface, before you launch Hauptwerk. (Hauptwerk queries the MIDI interfaces each time it launches; it doesn't support 'hot-plugging' of devices.)
- Launch Hauptwerk.
- Make sure that the MIDI device is present and ticked in the *left-hand* ('Console MIDI IN') column on Hauptwerk's 'General settings | MIDI ports | MIDI IN ports' screen tab.
- Load St. Anne's.
- Try using right-click auto-detection again for the virtual keyboards if necessary.
Does that solve it?