StarCraft® II Lockups and Crash Errors

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If you experience a crash with a blue or black screen error message, a crash to your desktop, or if your computer completely locks up while playing StarCraft® II, ensure that your computer meets the StarCraft II System Requirements.

If your system meets the requirements, follow the steps below to resolve the issue.

Windows

  1. Our games require an up-to-date operating system in order to run properly. Run Windows Update to be sure you're using the most recent version.
  2. The game requires up-to-date drivers to run smoothly. Update your drivers regularly.
  3. Programs running in the background can interfere with the game. Close any running background applications.
  4. Run the repair tool to resolve issues with damaged game files.
Advanced Troubleshooting
  1. Overclocked system components can cause crashes. Set your components to factory default speeds to resolve this issue.
  2. Changes to the software settings on your video card drivers may cause crashes or lockups. Reset your video driver settings to correct this problem.
  3. Your system components can overheat, causing your system to lock up and become unresponsive. Check for overheating components.
  4. A corrupted cache file can cause issues with Blizzard games. Deleting the Battle.net cache folder may resolve issues caused by outdated files.
  5. Hard disk errors can cause crashes and lockups. Run Check Disk and defragment your hard drive to try to repair any bad sectors.
  6. Crashes and lockups may be caused by problems with your computer's physical memory. Run a memory scan to rule out this issue.
  7. If the issue persists, uninstall your current copy of StarCraft II, then reinstall the game client. You will not lose your game data.

Mac

  1. Our games require an up-to-date operating system to run properly. Run Software Update to be sure you're using the most recent version.
  2. Reset Folder & File Permissions to ensure there is no conflict between the latest OS update and your permissions.
  3. Run the repair tool to resolve issues with damaged game files.
Advanced Troubleshooting
  1. Overheating can cause your system to lock up and become unresponsive. Follow our overheating prevention guide to avoid this issue.
  2. A corrupted cache file can cause issues with Blizzard games. Deleting the Battle.net cache folder may resolve issues caused by outdated files.
  3. Programs running in the background can conflict with StarCraft II. Try closing background applications.
  4. The folder may be saved on a corrupt hard drive sector. Run the Repair Disk utility to resolve hard drive issues.
  5. Run the Apple Hardware Test to ensure that there are no physical problems with your hard drive.
  6. If the issue persists, uninstall your current copy of StarCraft II, then reinstall the game client. You will not lose your game data.

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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