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Fix Git 'index.lock file exists' Error - Windows Security App Not Working After Update: Fixes-Recover from Git Detached HEAD with Reset Hard

Updated 2026-07-28 14:55:55macos-help
Fix Git 'index.lock file exists' Error - Windows Security App Not Working After Update: Fixes-Recover from Git Detached HEAD with Reset Hard
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.