I have searched for a way to upgrade the software, but there isn't one which means you will have to take advantage of the automatic Compatibility troubleshooter tool offered by Windows 8. Insert the CD, and then right click the setup package. Choose Troubleshoot Compatibility and Windows will scan for available tweaks. It will offer a selection window after the scanning is done. Choose Windows XP, then test the settings. If everything goes well, continue installing the application and confirm your settings. There isn't anything to do since no other version of KeyMaze 300 is available on the Internet.