I did a remote session with Murray and the issue is fixed. The problem was that the installation in the Control Panel showed that 3.0.1 was installed but in fact it was 3.0.2. For the installation of 3.0.4 a former version automatically will be deinstalled. The issue was that from a Registry perspective a 3.0.1 had to be deinstalled but in fact it was not present anymore. I think this inconsistancy between installed version and actual version could be caused from the upgrade to Windows 10 where the Registration could be wrongly overridden. The Registry was manually fixed and the installation 3.0.4 went smoothly.
We will observe if such a situation may happen again. If someone may see similar pop up windows as from this post, please touch base with us though the helpdesk or by sending us an email to
support@notation.com.
Reinhold