This article covers unexpected Blizzard Update Agent errors.

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Troubleshooting steps when unable to start an order in-game

Information on error BLZBNTAGT00000BC1.

Troubleshooting steps for resolving payment error in Heroes of the Storm.

Enabling the Command Key + Click combination on Mac systems.

Something went wrong while trying to launch the game. Please make sure it's installed and updated, then try again.

Information on error BLZBNTBNA00000003

Game cannot be launched because the operating system wouldn't allow the system to write to registry.

This product is already installed.