Error code
Blizzard BLZBNTAGT0000084B
BLIZZARDBLZBNTAGT0000084B
Game/Platform Error· An error code shown by a game or gaming platform/launcher.
What it means
The Battle.net Update Agent could not modify the necessary game files on disk..
How to fix it
- Run Battle.net as administrator.
- Use Scan and Repair from the game's gear menu.
- Clear the Battle.net cache folder.
- Configure antivirus exceptions for Blizzard applications.
- Create a new Windows administrator account to rule out profile permissions.
- Uninstall and reinstall the game.
Not affiliated with Blizzard. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More Blizzard codes
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- BLZBNTAGT00000840Something went wrong with a game file and the update cannot proceed.
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