Blizzard Battle.net Desktop App Crashes

Updated: 1 week ago
Article ID: 10483
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Common Problems

The Blizzard Battle.net desktop app crashed with an unexpected error and needs to close

If you experience a crash with a blue screen error message, follow the steps in our Blue Screen Crashes article. If your computer locks up while running the Blizzard Battle.net App, follow the steps in our Computer Restarts of Shuts Down article. Otherwise, follow the steps below to resolve the issue.

Windows®

  1. Update your drivers to resolve any compatibility issues.
  2. Update or temporarily uninstall any security programs, which may mistakenly identify the login module as a security threat.
  3. Try creating a new administrator account to resolve permissions issues.
  4. Uninstalling and reinstalling the Blizzard App may resolve rare launcher issues.
Advanced Troubleshooting
  1. Close all other applications to resolve software conflicts and free up resources.
  2. Run a security scan to remove any viruses or malware infections.
  3. Disable any proxies that may interfere with the login module.
  4. Run ScanDisk and defragment your hard drive to try to repair any bad sectors.
    Note: Do not defragment a Solid State Drive (SSD).

Mac®

  1. Run Software Update to check for pending updates to software, drivers, and firmware.
  2. Update or temporarily uninstall any security programs, which may mistakenly identify the login module as a security threat.
  3. Try creating a new administrator account to resolve permissions issues.
  4. Uninstalling and reinstalling the Blizzard App may resolve rare launcher issues.
Advanced Troubleshooting
  1. Close all other applications to resolve software conflicts and free up resources.
  2. Run a security scan to remove any viruses or malware infections.
  3. Disable any proxies that may interfere with the login module.
  4. Run the Apple Hardware Test to make sure there are no physical problems with your hard drive.

Tried everything here?

If the steps above did not resolve your problem, visit our Technical Support forum or contact us.