Common Problems
This error occurs when the Battle.net desktop app cannot write patch files to your hard drive. Follow the steps below to resolve the issue.
Windows
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Make sure your computer meets all of the listed system requirements (World of Warcraft, StarCraft II, Diablo III, Hearthstone, Heroes of the Storm, Overwatch).
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Configure your security software's exception list to allow Blizzard applications to run.
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Close all other applications to resolve software conflicts and free up resources.
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Try creating a new administrator account to resolve permissions issues.
Advanced Troubleshooting
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Run ScanDisk and defragment your hard drive to try to repair any bad sectors.
Note: Do not defragment a Solid State Drive (SSD).
Mac
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Make sure your computer meets all of the listed system requirements (World of Warcraft, StarCraft II, Diablo III, Hearthstone, Heroes of the Storm, Overwatch).
-
Configure your security software's exception list to allow Blizzard applications to run.
-
Close all other applications to resolve software conflicts and free up resources.
-
Try creating a new administrator account to resolve permissions issues.
Advanced Troubleshooting
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Repair Disk Permissions to resolve any permission conflicts with logon modules.
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Run the Apple Hardware Test to make sure there are no physical problems with your hard drive.
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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