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Fix Task Scheduler Authentication Failed Error - Resolve Error 502 on Windows Update-Fix 'Port Already in Use' Error with No Visible Process

2026-06-13 20:27:13
Fix Task Scheduler Authentication Failed Error - Resolve Error 502 on Windows Update-Fix 'Port Already in Use' Error with No Visible Process

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.