Instalition problems

im new to this and had problems dowmloading horizon it kept coming up unsafe i saved the link on another post for version and it saved but wont seem to open can anyone help ?

Right click on the setup installer, click on properties, find the Unblock button near the bottom, click it, then click Apply and then OK. It should now install for you.

Here’s a link for the latest version if you need to download it again: