can't be clearer than i said
you downloaded the game
next you create a new folder with the name lets say EPW
next you move the downloaded file into this new folder
now you right click the file and select "Extract here..."
after its done
open your antivirus, and locate where you can add exceptions (i dunno which one you use so if you don't know how to add exceptions you ca search it on google, best way)
after the exception is created, open the "EPW" folder you created, locatet he foler "launcher", you will see a file inside: Launcher.exe, double click it
now the launher is opened and checking for updates, it might give an error
now locate the button VERIFY on this launcher and click it
wait for it to be done
let me know how it went