Security won't let me play minecraft demo?

I'm trying to play the minecraft demo and when i do it comes up with a security thing that says: Application Blocked by Security Settings, And another one saying: Applicatiion Blocked for security i tried turning off all of my security on norton 360 but no matter what it won't let me play it please help i'm about to just throw my computer out the window

Sorry for the trouble. I'm Vineeth and I'm from the Norton Support team.

Can you please submit the application to us at http://www.Norton.com/fp so we can review it and whitelist it if needed?

You can then add the application to the scan exclusion list. Here are the steps to add the file to the exclusion list: https://support.norton.com/sp/en/us/home/current/solutions/v3672136_NIS_Retail_2014_en_us

Let me know if that helps!