The Plug-ins of the Waldorf Edition themselves run fine on newer computer operating systems, but the CD installer is unfortunately not compatible with this. The solution: Our new download-version without any CD-authorization installs and runs without any problems. Please send a scan of your original Waldorf Edition invoice as a proof of purchase along with a picture of the packaging showing the serial number to our support (support@waldorfmusic.de). We will then authorize a download-version for you.