The Battle.net Update Agent is responsible for updating and launching your Blizzard games. If the Battle.net Update Agent is not working properly you may encounter patch looping, an inactive Play button, or a patch getting stuck at Updating Setup Files. Follow the steps for your operating system below to resolve issues with the Battle.net Update Agent.
Tried Everything Here?
If you have tried all of the steps for your operating system and still require assistance, please visit our Technical Support Forum (World of Warcraft) (StarCraft II) (Diablo III) (Hearthstone) or contact us.
Article ID: 6000060