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Fixing 'Access Denied' Errors When Running PowerShell Scripts - npm Command Not Found After Node.js Install Fix-Fix Windows Update File Locked Error 0x80070020

2026-06-13 22:08:06developer-tools
Fixing 'Access Denied' Errors When Running PowerShell Scripts - npm Command Not Found After Node.js Install Fix-Fix Windows Update File Locked Error 0x80070020

Final checklist

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