Updated: 3 months ago
Article ID: 19031
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Common Problems

  • Getting the BLZBNTBTS0000005C error

This error occurs when the Update Agent can't start due to missing or corrupted data. The Update Agent is the program that launches, updates, and installs your Blizzard games.

  1. Restart your computer to resolve problems caused by programs and services running in the background.
  2. Try creating a new administrator account to resolve permissions issues.
  3. Update or temporarily uninstall any security programs, which may mistakenly identify the login module as a security threat.
  4. Uninstalling and reinstalling the App may resolve rare launcher issues.

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.