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PowerShell Script Shows Blank Window: Fixes That Work - UFW Allow Rule Not Working: Port Still Closed-How to Resolve Invalid Configuration in Task Scheduler

2026-06-14 16:24:13developer-tools
PowerShell Script Shows Blank Window: Fixes That Work - UFW Allow Rule Not Working: Port Still Closed-How to Resolve Invalid Configuration in Task Scheduler

Final checklist

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