I’ve redownloaded unity a few times because of this popup and all I get is this message. I’ve tried reinstalling unity and visual studio multiple times but this comes up anyway. How do I fix unity?
Is your machine within the system requirements? Have you downloaded the installer from the official source?
If both are a yes, then you should probably reinstall Windows. Google turns up a lot of results mentioning corrupt system files. In any case, I doubt that Unity can do anything about it.