Sometimes, Cubase gets "stuck" trying to load a driver configuration from a previous session. If you see the error message:

ASIO DirectX Full Duplex Driver is a legacy component originally included with older versions of Cubase (such as Cubase 5 and 6) to provide full-duplex audio support for built-in sound cards on Windows. Steinberg Forums How to Fix or Restore the Driver

| Problem | Solution | |--------|----------| | Driver selected but no sound | Run Cubase as Administrator. Go to Driver’s Control Panel → enable only your playback/record device. | | “Failed to open audio device” | Disable “Allow applications to take exclusive control” in Windows Sound Settings → Device Properties → Advanced. | | Crackling/Popping | Increase ASIO buffer size (512–1024 samples) inside Cubase’s Device Setup. | | Driver not showing after manual copy | Uninstall Cubase, delete %APPDATA%\Steinberg\Cubase folder, reinstall with legacy components. |