If you experience crashes, blue or black screens, performance issues, or your computer locks up while playing, follow the steps below to resolve these issues.

Check your latency before continuing with the troubleshooting steps below. If your latency is high, check our connection troubleshooting article.

Note: Before you troubleshoot this issue, check the World of Warcraft® System Requirements to make sure your computer's hardware meets the minimum requirements.

Windows®

  1. Issues with temporary game files may cause a drop in game performance. Try resetting your user interface to clear out these files.
  2. If any in-game settings are set too high for your computer, you may notice a performance loss. Lower your in-game video settings in the System menu to improve performance.
  3. Background programs take up some of your computer’s resources, which can make your game appear choppy. Close any running background applications and try again.
  4. Run the repair tool to resolve issues with damaged game files.
  5. Outdated drivers can conflict with the game, decrease performance, and cause errors. Be sure that your drivers are fully up to date.
  6. If you're playing on a laptop, optimize your power management settings and graphics options for gaming.
  7. World of Warcraft requires an up-to-date operating system to work properly. Run Windows Update.
Advanced Troubleshooting

Click here if you're having trouble viewing the above video.

  1. Check for overheating hardware. If it looks like some components are overheating, you may want to bring your computer to a local technician for help.
  2. Overclocked system components can cause crashes. Set your components to factory default speeds to resolve this issue.
  3. If you are running the game in Crossfire mode with two AMD graphics cards and you notice a significant drop in your FPS, run World of Warcraft in 32-bit mode.
  4. Changes to the software settings on your video card drivers may cause crashes or lockups. Reset your video driver settings to correct this problem.
  5. If you are using a laptop with NVIDIA Optimus technology, you must force your computer to use the NVIDIA graphics card. See NVIDIA's support article for assistance.
  6. Try running the game in a window and with no sound. You can enable windowed mode in the in-game System menu by changing the graphics Display Mode dropdown to Windowed. You can disable in-game sound by unchecking Enable Sound in the system Sound menu.
  7. Try selecting a lower setting from the Sound Channels dropdown in the System > Sound menu.
    Note: Some add-ons may set Sound Channels back to High after installation.
  8. Errors on your hard drive could be contributing to your entire computer slowing down. Run ScanDisk and Defrag to address hard drive issues.
  9. Crashes and lockups may be caused by problems with your computer's physical memory. Run a memory scan to rule out this issue.

Mac®

  1. World of Warcraft requires an up-to-date operating system to work properly. Run Software Update.
  2. Issues with temporary game files may cause a drop in game performance. Try resetting your user interface to clear out these files.
  3. Programs running in the background can conflict with World of Warcraft. Try closing background applications.
  4. Reset Folder & File Permissions to make sure there is no conflict between the latest OS update and your permissions.
  5. Run the repair tool to resolve issues with damaged game files.
  6. The folder may be saved on a corrupt hard drive sector. Run the Repair Disk utility to resolve hard drive issues.
Advanced Troubleshooting
  1. Some Macs may experience performance loss due to overheating. Follow the steps on the preventing overheating guide.
  2. Lowering the maximum frame rate can improve performance by preventing out-of-focus objects from affecting your frame rate.
  3. Try selecting a lower setting from the Sound Channels dropdown in the System > Sound menu.
    Note: Some add-ons may set Sound Channels back to High after installation.
  4. The System Management Controller (SMC) controls power flow and fan speed. If it's not working properly, it can affect game performance. Reset the SMC.
  5. Reinstalling your drivers can resolve performance issues related to corrupt drivers. Run a Combo Update.
  6. Performance issues can arise if your Mac’s permissions are not set correctly. Try repairing disk permissions.
  7. A corrupted cache file can cause issues with Blizzard games. Deleting the Battle.net cache folder may resolve issues caused by outdated files.
  8. Run an Apple Hardware Test to make sure your computer’s physical components are working properly.
  9. Some MacBook Pro models have two separate graphics cards, which may require manual setup. Make sure your MacBook Pro is set to higher performance or automatic graphics switching is disabled. (15-inch, late 2008 | 17-inch, early 2009 | 15- and 17-inch, mid-2009 | 15-inch, mid-2010 and later | 17-inch, mid-2010 and later).

If the above steps do not resolve the issue, uninstall and reinstall World of Warcraft.

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.