Common Problems
This error occurs when the Battle.net Setup program cannot run after an update. This is usually caused by another application preventing the Setup program from making changes to the game files on your computer. Follow the steps below to resolve the issue.
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Restart your computer to resolve problems caused by programs and services running in the background.
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Update your drivers and operating system to resolve any compatibility issues.
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Close all other applications to resolve software conflicts and free up resources.
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Delete the Battle.net Tools folder to automatically rebuild outdated or corrupt files.
Tried everything here?
If you have tried these steps and still require assistance, visit our Technical Support Forums (World of Warcraft) (StarCraft II) (Diablo III) (Hearthstone) (Heroes of the Storm) (Overwatch) or contact us.
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