I am trying to clear up space within my computer C drive. There are five different wow apps installed onto my computer. I want to remove some of them without compromising my account or needing to completely uninstall and reinstall the game. I currently play Cata classic, hardcore anniversary, and retail. Ideally I would like to remove: BC classic, LK classic, and WoW classic era. I am unsure if the current Cata classic is built on these previous files. Any help would be greatly appreciated.
BC classic became Wrath classic which became Cata classic, so there’s no BC or Wrath classic for you to uninstall anymore. You can’t uninstall the BC or Wrath portions of Cata classic even if you aren’t going to go back to Outlands or Northrend.
Classic Era is a separate app and could hypothetically be uninstalled except it’s also the client used for the hardcore anniversary realms so you need to leave that alone too.
Basically inside the World of Warcraft folder you need the _classic_era_ folder for hardcore anniversary, the _classic_ folder for Cata classic, the _retail_ folder for retail, and the Data folder which is used by all versions of the game. And I see there’s also a .battle.net folder which is presumably used by the launcher.