Battle.net Blizzard Error Code BLZBNTAGT00000960: How to Fix It

Easy 15-45 minutes Medium Severity Verified June 2026
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Error Code
BLZBNTAGT00000960
Brand
Battle.net Blizzard
Product Type
game_launcher
Severity
Medium
DIY Difficulty
Easy
Estimated Fix Time
15-45 minutes
Battle.net error BLZBNTAGT00000960 indicates an update file mismatch, meaning the Battle.net launcher has detected that one or more files downloaded during an update do not match the expected checksums or versions. This typically happens when an update is interrupted, files become corrupted, or a background process interferes with the download. The good news is that this is a software-level issue and can almost always be resolved without professional help by following a few targeted troubleshooting steps.
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Tools You'll Need

How to Fix Error Code BLZBNTAGT00000960

  1. Restart the Battle.net Launcher

  2. Restart Your Computer

  3. Run the Battle.net Launcher as Administrator

  4. Temporarily Disable Antivirus and Firewall

    Only disable security software temporarily and in a trusted network environment. Re-enable it immediately after testing.

  5. Clear the Battle.net Cache

    Do not delete the entire Battle.net folder in ProgramData — only the Cache subfolder contents. Deleting the wrong folder may require a full reinstall.

  6. Delete the Battle.net Agent Folder

    Make sure Battle.net is fully closed before deleting the Agent folder. Deleting it while the app is running can cause additional errors.

  7. Check and Free Up Disk Space

  8. Scan and Repair the Game Files

  9. Flush DNS and Reset Network Settings

    The netsh winsock reset command can affect other network configurations. If you experience broader internet issues afterward, a system restart typically resolves them.

  10. Reinstall the Battle.net Launcher

    Back up any custom settings or game configurations you wish to keep before reinstalling. Your game files themselves should remain intact in their install directories, but verify the game install paths after reinstalling the launcher.
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When to Call a Professional

This error is almost entirely software-based and rarely requires professional help. However, if the error persists after all steps including a clean reinstall, consider contacting Blizzard Support directly at battle.net/support — they can review your launcher logs and account status for server-side or account-specific issues. If you suspect your hard drive is failing (frequent corruption errors across multiple apps), a computer technician can run a disk health diagnostic.

Frequently Asked Questions

What does Battle.net error BLZBNTAGT00000960 mean?
Error BLZBNTAGT00000960 means the Battle.net launcher detected a file mismatch during an update — one or more files don't match what Blizzard's servers expect. This is usually caused by an interrupted download, corrupted cache, or a security program blocking the update.
Will I lose my game progress or saves if I fix this error?
No. Your game saves and progress are stored separately from the game launcher files — most Blizzard games store progress on Blizzard's servers tied to your account. Clearing the cache, deleting the Agent folder, or even reinstalling the launcher will not affect your saved data or game progress.
Why does Battle.net error BLZBNTAGT00000960 keep coming back?
If the error keeps returning, the most likely culprits are your antivirus or firewall repeatedly quarantining Battle.net update files, or ongoing disk space issues preventing complete file writes. Make sure Battle.net and its Agent are whitelisted in your security software, and ensure you maintain adequate free disk space.
Does deleting the Battle.net Agent folder uninstall my games?
No. Deleting the Agent folder only removes the update management component of the Battle.net launcher. Your installed games are stored in separate directories (by default under C:\Program Files (x86)\[Game Name]) and are not affected. The Agent will automatically reinstall itself the next time you open the launcher.
How long does the Scan and Repair process take for this error?
The Scan and Repair process for Blizzard games typically takes between 10 and 45 minutes, depending on the size of the game and your internet connection speed. Larger games like World of Warcraft or Call of Duty may take longer. Your game is not playable during the scan, so plan accordingly.

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