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How to Remove a Lock File Blocking Ubuntu apt update - Resolve Permission Denied in VS Code Terminal PowerShell-UFW Port Closed Despite Allow Rule: Fixes

2026-06-13 13:45:57
How to Remove a Lock File Blocking Ubuntu apt update - Resolve Permission Denied in VS Code Terminal PowerShell-UFW Port Closed Despite Allow Rule: Fixes

Result check

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