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Common Problems
This error occurs when the Battle.net Update Agent can't start due to missing or corrupted data. The Battle.net Update Agent is the program that launches, updates, and installs your Blizzard games.
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Restart your computer to resolve problems caused by programs and services running in the background.
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Try creating a new administrator account to resolve permissions issues.
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Try closing background applications to resolve any software conflicts.
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Uninstalling and reinstalling the Battle.net App may resolve rare launcher issues.
Tried everything here?
If the steps above did not resolve your problem, visit our Technical Support forum or contact us.
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