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Fix git index.lock File Exists Error on Windows - Windows Update Stuck Error 0x800f081f Solution-Fix Windows Defender Real-Time Protection Not Turning On After Update

Updated 2026-07-28 13:37:43macos-help
Fix git index.lock File Exists Error on Windows - Windows Update Stuck Error 0x800f081f Solution-Fix Windows Defender Real-Time Protection Not Turning On After Update
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.