I had lots of problem with the installation, too
what worked in the end was running it via the command prompt
https://www.technewstoday.com/this-app-has-been-blocked-by-your-system-administrator/#:~:text=If%20you%20are%20seeing%20%E2%80%9Cthis,download%20sources%20are%20relatively%20suspicious.
I've downloaded the game, but it's telling me to insert the DVD
that's where the tages patch should come in use
did you download the full package (videos etc)?
i just clicked the 'rapid' download
after that, you shouldn't need the disc anymore
so i gotta uninstall it and reinstall it?