Missing files in cubase 9.5

Hello there,

I bought cubase 9 like 2 months ago. Upgraded to 9.5 directly.
I installed some of the ( i thought it was all full versions) demos. (The grand,dark planet etc.)

And now everything expired. And cubase keeps asking for files at start up and project start up. I thought i deleted everything, but he keeps asking for the following files:

Halion sonic presets 01 presets 02 presets 03
Granular synth

Anyone an idea where these files come from?
And how to fix it?

Thanks. Rowlogic

Sounds like you deleted too much, the things you get a message for seem to be actual Cubase content. What OS are you on?