Can't Launch Battle.net Desktop App Due to DLL Error

Updated: 2 months ago
Article ID: 135608
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Common Problems

Error: Cannot launch the Battle.net App. A required DLL could not be found. Please download and reinstall the Battle.net App.

If you encounter this error when launching the Battle.net Desktop App, follow these steps:

  1. Update your Operating System to resolve any compatibility issues.
  2. Check Microsoft support for Visual C++ runtime updates.
  3. Missing or corrupted Windows® system files may cause this error. Use System File Checker to repair and replace system files.
  4. Uninstalling and reinstalling the Battle.net App may resolve rare launcher issues.
Advanced Troubleshooting
In a small number of cases you may need to manually reinstall your digicert SSL certificates. To do this, follow the steps below.
  1. Go to https://www.digicert.com/digicert-root-certificates.htm
  2. Find DigiCert Trusted Root G4 under the Root Certificates section and click Download DER/CRT
  3. Double-click DigiCertTrustedRootG4.crt and click Open
  4. Click Install Certificate...
  5. Select Local Machine and click Next
    Note: If a User Account Control dialog box pops up, click Yes
  6. Select Place all certificates in the following store and click Browse
  7. Select Trusted Root Certification Authorities and click OK
  8. Click Next
  9. Click Finish

Tried everything here?

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