BLZBNTBTS00009

Updated: 2 months ago
Article ID: 27184
Relevant Games:

Common Problems

An error occurred while writing to your hard drive. Please make sure your hard drive is not full and try again.
BLZBNTBTS00009

This error occurs when the Blizzard desktop app cannot write patch files to your hard drive. Follow the steps below to resolve the issue.

Windows

  1. Make sure your computer meets all of the listed system requirements (World of Warcraft, StarCraft II, Diablo III, Hearthstone, Heroes of the Storm, Overwatch).
  2. Disable or temporarily uninstall any security programs, which may mistakenly identify the login module as a security threat.
  3. Try closing background applications to resolve any software conflicts.
  4. Try running the game on an administrator account to resolve permissions issues.
Advanced Troubleshooting
  1. Make sure Windows Secondary Logon is enabled, which Blizzard Agent requires to run correctly.
  2. Run ScanDisk and defragment your hard drive to try to repair any bad sectors.
    Note: Do not defragment a Solid State Drive (SSD).

Mac

  1. Make sure your computer meets all of the listed system requirements (World of Warcraft, StarCraft II, Diablo III, Hearthstone, Heroes of the Storm, Overwatch).
  2. Disable or temporarily uninstall any security programs, which may mistakenly identify the login module as a security threat.
  3. Try closing background applications to resolve any software conflicts.
  4. Try running the game on an administrator account to resolve permissions issues.
Advanced Troubleshooting
  1. Repair Disk Permissions to resolve any permission conflicts with logon modules.
  2. Repair Application Support permissions, which may prevent installation or startup.
  3. Try repairing the Shared folder directory to resolve any permission issues.
  4. Run the Apple Hardware Test to make sure there are no physical problems with your hard drive.

Tried everything here?

If you have tried these steps and still require assistance, visit our Technical Support Forums (World of Warcraft) (StarCraft II) (Diablo III) (Hearthstone) (Heroes of the Storm) (Overwatch) or contact us.