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Fix 'Permission Denied' Error When Downloading Windows Updates on Ubuntu - Fix Task Scheduler 504 Gateway Timeout-Nginx Certificate Test Failure Troubleshooting

2026-06-14 05:28:29
Fix 'Permission Denied' Error When Downloading Windows Updates on Ubuntu - Fix Task Scheduler 504 Gateway Timeout-Nginx Certificate Test Failure Troubleshooting

Result check

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