Installation and Patch Troubleshooting

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Use the steps below to troubleshoot installation issues for Blizzard games and products.

Windows

  1. Try restarting your computer before continuing with the remaining steps.
  2. Wireless connections can be unstable at times. Switch to a wired connection.
  3. You may not have the proper permissions. Try creating a new administrator account.
  4. Run the game in Administrator Mode to address many installation errors.
  5. Battle.net Agent handles installation and patching for Blizzard games. Issues can arise if it is not functioning properly. Try troubleshooting Agent.
  6. Security programs can interfere with installation. Disable or temporarily uninstall any security programs.
  7. Programs running in the background can interfere with installation. Try closing background applications.
Advanced Troubleshooting
  1. The file being read may be corrupt. Run Check Disk and defragment your hard drive.
  2. Errors in your computer’s physical memory can cause the game to crash. Run the Memory Diagnostic Tool.
  3. Certain malicious software can lock down necessary data that the game needs to run. Run a virus scan.

Mac

  1. Try restarting your computer before continuing with the remaining steps.
  2. Wireless connections can be unstable at times. Switch to a wired connection.
  3. Run the game in Administrator Mode to address many installation errors.
  4. Our games require an up-to-date operating system to run properly. Run Software Update.
  5. Third party archiving applications can extract files with invalid permissions. Use Apple's Archive Utility to extract the files with proper permissions.
  6. Battle.net Agent handles installation and patching for Blizzard games. Issues can arise if it is not functioning properly. Try troubleshooting Agent.
  7. Security programs can interfere with installation. Disable or temporarily uninstall any security programs.
  8. Programs running in the background can interfere with installation. Try closing background applications.
Advanced Troubleshooting
  1. The folder may be saved on a corrupt hard drive sector. Run the Repair Disk utility.
  2. Configure your network to make sure your connection is not being blocked by a firewall or router.
  3. Run the Apple Hardware Test to make sure there are no physical problems with your hard drive.

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 (World of Warcraft) (StarCraft II) (Diablo III) (Hearthstone) (Heroes of the Storm) or contact us.

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