How to ensure that your .NET Framework is up-to-date
Re-install NDU via the latest program installer available for download from our site
(this will also install the latest version of the framework):
There is no need to uninstall NDU first. Before running the installer, just make sure that NDU is closed and any integrated 3rd-party application (like AmiBroker) is closed. Also, make sure that you are running the latest installer and not an old one that you downloaded previously.
Install .NET Framework v.4.8 by getting it directly from Microsoft:
On the Microsoft download page, click the link to "Download .NET Framework 4.8 Runtime". Then locate the downloaded set-up file and run it.