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How to Fix Git Detached HEAD State and Undo Changes - Fix npm Permission Denied by Changing Global Directory-ERR_NAME_NOT_RESOLVED Fix: Router DNS Settings

2026-07-29 01:41:03office-tools
How to Fix Git Detached HEAD State and Undo Changes - Fix npm Permission Denied by Changing Global Directory-ERR_NAME_NOT_RESOLVED Fix: Router DNS Settings

Final checklist

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