Since an ISO is a "virtual disc," your computer needs to "insert" it into a virtual drive to read the data.
If you want the experience of downloading a complete, permanent installer file—something you can burn to a disc, store on a USB, or keep in a folder labeled "Backups"—go to . You pay for the game, you download the offline installer (the modern equivalent of an ISO), and you own it forever. Pc Games Iso File Download