I downloaded the zoom app unable to open this app being blocked.
Are you seeing any error message when you try to open the app?
Have you restarted your computer after installing the Zoom app? Be sure you are using the Restart command. Not Shutdown and startup again if you have Windows Fast Startup feature enabled. If you use Windows 8/8.1, 10 or 11, there can be an issue with the Windows Fast Startup feature.. See more information here.