Closing Background Applications

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Third-party programs running in the background can interfere with the normal functioning of Blizzard games and may even prevent them from running at all. By temporarily disabling these programs from booting, they can be eliminated as the source of the problem. Follow the steps for your operating system below:

Windows

Selective Startup

  1. Press Windows Key + R
  2. Type msconfig
  3. Click OK
  4. In the General tab:
    Choose Selective Startup
    Disable (uncheck) Load startup items
  5. Go to the Services tab
  6. Check Hide all Microsoft Services
  7. Click Disable all
  8. Click Apply
  9. Click OK
  10. Click Restart

Note: When you boot your computer in Selective Startup, you are disabling every application that normally starts up with your computer. This may include firewall and security software that you would normally have enabled. After you are finished testing, you should reenable your security software in msconfig.exe.

To identify the background application causing the issue, try the steps below or contact the manufacturer of the problematic service for further assistance.

Identify Problematic System Services

  1. Press Windows Key + R
  2. Type msconfig
  3. Click OK
  4. Go to the Services tab
  5. Check Hide all Microsoft Services
  6. Click Disable all
  7. Check the boxes next to the first few services that are listed and restart the computer. If the problem does not occur, you can eliminate those first few services as the cause of the problem.
  8. With the first few services selected, check the boxes next to the second set of services, and restart the computer.
  9. Repeat this process until you reproduce the problem.

If you cannot reproduce the problem, you can eliminate System Services as the cause of the problem. Move on to checking the Startup Items below.

Identify Problematic Startup Items

Windows XP, Windows Vista, Windows 7
Windows 8
  1. Press Windows Key + R
  2. Type msconfig
  3. Click OK
  4. In the General tab:
    Select the Load startup items check box
  5. Go to the Startup tab
  6. Click Disable all
  7. Select the check boxes next to the first few startup items that are listed and restart the computer. If the problem does not occur, you can eliminate the first few startup items as the cause of the problem.
  8. With the first few startup items selected, check the boxes next to the second set of startup items and restart the computer. Repeat this process until you reproduce the problem.
  1. Press Ctrl + Alt + Del
  2. Select Task Manager
  3. Select the Startup tab
  4. Close out applications one a time and try to start the game after each one is shut down.

Mac

Temporarily Disabling Login Items

Restart the computer.

  • If you see the login window, press the Shift key while you click the Log In button, and then release the Shift key when you see the Dock.
  • If you don’t see the login window, start your computer, hold down the Shift key when you see the progress bar in the startup window, and then release the Shift key after your desktop appears.

Identifying Problematic Login Items

If the step above resolved the login issue and you want to identify the problematic login item, troubleshoot the login items by deleting them then re-adding them individually until the login problem occurs again.

  1. Choose Apple menu > System Preferences and click Users & Groups.
  2. Click your account’s name, and then click Login Items.
    • Make a list of the login items—you’ll need to remember them later.
  3. Select all of the login items and click Delete (-).
  4. Apple menu > Restart.
  5. Open Users & Groups preferences again and add the login items one at a time, restarting your computer after adding each one, until the symptom occurs again. You don’t have to hold down any keys when you restart after adding each login item.

When you’ve found the incompatible login item, repeat steps 1-3 but only delete the problematic item. Contact the manufacturer of the problematic login item for further assistance.

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) or contact us.

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