Blizzard games require that you use the most current version of your operating system in order to function properly. If you are receiving error messages that say the game requires a newer operating system, follow the steps below to resolve the issue.
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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: 7400074