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Fix 'git pull failed index.lock file exists' Error - Windows Defender Real-Time Protection Keeps Disabling Automatically-Resolve Docker Pull Authentication Failures

2026-07-28 12:59:42macos-help
Fix 'git pull failed index.lock file exists' Error - Windows Defender Real-Time Protection Keeps Disabling Automatically-Resolve Docker Pull Authentication Failures

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.

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