StarCraft® II Installation Troubleshooting

Keywords:

If you experience problems when you try to install StarCraft® II, such as error messages or stalled installation progress, follow the steps below.

Note: Before continuing, please make sure that your computer meets the minimum StarCraft II System Requirements.

Windows

  1. StarCraft II requires an up-to-date operating system in order to run. Check for updates before continuing.
  2. If you already have StarCraft II: Wings of Liberty installed and fully patched, you do not need to install Heart of the Swarm. Instead, go to Account Management and upgrade your account to Heart of the Swarm to access the expansion content.
  3. The installer needs administrator permission to update the files on your computer. Be sure to use an administrator account.
  4. You must have a stable internet connection to install the game. If you experience connectivity issues, optimize your internet connection.
  5. If your game disk is damaged, or if you experience issues while trying to install from a disk, download and run the game installer from our site.
Advanced Troubleshooting
  1. Programs running in the background on your computer can interfere with installation. Close any running background applications and try again.
  2. Security software can interfere with our streaming installer. Try disabling or temporarily uninstalling your security applications.
  3. The Update Agent helper program is what handles installation and patching for Blizzard games. Issues can arise if it is not functioning properly. Try troubleshooting Agent.
  4. The installer may not be able to write files to damaged or corrupt hard drive sectors. Run ScanDisk and Defrag to check for and address hard drive issues.
  5. Damaged, corrupt, or unreadable computer memory may cause installation issues. Run a Memory Diagnostic scan to check for memory issues.
  6. Malicious programs may interfere with the installation process. Run a security scan to find and resolve any infections.
  7. Deleting files in your Temp folder may sometimes resolve installation issues. Locate the Temp folder and delete its contents, then try again.
    • Windows XP: C:\Documents and Settings\Your Name\Local Settings\Temp
    • Windows Vista, Windows 7, Windows 8: C:\Users\Your Name\AppData\Local\Temp

Mac

  1. StarCraft II requires an up-to-date operating system in order to run. Check for updates before continuing.
  2. If you already have StarCraft II: Wings of Liberty installed and fully patched, you do not need to install Heart of the Swarm. Instead, simply go to Account Management and upgrade your account to Heart of the Swarm to access the expansion content.
  3. The installer needs administrator permission to update the files on your computer. Be sure to use an administrator account.
  4. You must have a stable internet connection to install the game. If you experience connectivity issues, try optimizing your internet connection.
  5. If your game disk is damaged, or if you experience issues while trying to install from a disk, download and run the game installer from our site.
  6. Make sure to use the Archive Utility, not a third party tool, to extract the installer.
Advanced Troubleshooting
  1. You may have issues installing the game if your disk permissions are not correct. Try repairing your disk permissions.
  2. Programs running in the background on your computer can interfere with installation. Close any running background applications and try again.
  3. Security software can interfere with our streaming installer. Try disabling or temporarily uninstalling your security applications.
  4. The Update Agent helper program is what handles installation and patching for Blizzard games. Issues can arise if it is not functioning properly. Try troubleshooting Agent.
  5. An incorrectly configured network may prevent the installer from connecting to our servers. Be sure that your network is properly configured.
  6. StarCraft II may not properly install if some of your computer's hardware is not working correctly. Run the Apple Hardware Test to check for hardware trouble.

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.

Get Help

Still can't find a solution? Submit a ticket and someone will help out!