@Peter-Corstiaans Hello. This isn't Magix customer support but a user forum and we are all users like you. But maybe we can give advice.
I assume you see a pop-up message after starting your computer? This appears if you don't opt-out of installing the Magix Update Notifier during the installation of Magix software.
You can simply uninstall the Magix Update Notifier in the Windows Apps settings. That should get rid of these pop-ups.
If you are gettting them by email, login to your Account at magix.com, icon top right of the home page, using the email address and password VDL is registered with.
Under Info service uncheck the option shown below
In VDL Progam settings, System tab ensure Hide news is checked
In Windows settings, Installed Apps, look for Magix Cloud import, uninstall it if you do not use it. Note, if you have an older version installed it may be listed as Update Notifier, or Connect ,