Sign up for a Battle.net account if you don't have one.
To download , you must use the official Battle.net desktop app . Quick Download Guide
Choose (or a specific version like Cataclysm Classic or Hardcore ). World of warcraft classic Download PC Game
WoW Classic requires an active World of Warcraft subscription to play (there is no separate purchase for the game itself).
World of Warcraft Classic - Battle.net
Download and install the Battle.net Desktop App. Select Game Version: Open the app and select the World of Warcraft icon.
Click the blue Install button. Once finished, click Play . Sign up for a Battle
Click the dropdown menu above the "Install" button.