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Home / developer-tools / Clear Windows Defender Cache via Command Line - How to Unlock Grayed Out Settings in Windows Terminal-Fixing PowerShell Update Error 0x800f081f (DISM Source Files)

Clear Windows Defender Cache via Command Line - How to Unlock Grayed Out Settings in Windows Terminal-Fixing PowerShell Update Error 0x800f081f (DISM Source Files)

2026-06-15 21:45:41developer-tools
Clear Windows Defender Cache via Command Line - How to Unlock Grayed Out Settings in Windows Terminal-Fixing PowerShell Update Error 0x800f081f (DISM Source Files)

Final checklist

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