Failed to Launch Battle.net App

Keywords: BLZAPPBTS0000C, BLZPTS0000C, BLZBNTBTS0000005D
We're having trouble starting Battle.net. Please try again. If the problem persists, please try restarting your computer.
Errors: BLZBNTBTS0000005D, BLZBNTBTS0000C

This error occurs when the Battle.net Update Agent is prevented from launching properly. This is usually caused by missing or corrupted Agent files. Follow the steps below to resolve the issue.

Windows

  1. Programs running in the background can interfere with the Battle.net Update Agent. Close any running background applications.
  2. Restart your computer to clear its memory and free up system resources that your game needs to run.
  3. You may experience errors when Battle.net Update Agent files are missing or corrupt. Delete the Battle.net Tools folder to have the Battle.net Update Agent automatically recreate necessary files.
  4. If the issue persists, uninstall and reinstall the game
  5. Uninstalling and reinstalling the Battle.net App may resolve rare launcher issues. 

Mac

  1. Programs running in the background can interfere with the Battle.net Update Agent. Close any running background applications.
  2. Restart your computer to clear its memory and free up system resources that your game needs to run.
  3. You may experience errors when Battle.net Update Agent files are missing or corrupt. Delete the Battle.net Tools folder to have the Update Agent automatically recreate necessary files.
  4. There may be a hard drive issue preventing the game files from being read. Run the Repair Disk Permissions and Repair Disk utilities to try repairing any bad sectors.
  5. You may encounter this error if your computer's Shared folder permissions are incorrect. Repair the Shared folder’s permissions.
  6. If the issue persists, uninstall and reinstall the game
  7. Uninstalling and reinstalling the Battle.net App may resolve rare launcher issues. 

Tried everything here?

If you have tried all of the steps for your operating system and still require assistance, please visit our Technical Support Forum or contact us.

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