====== Riabilitare Windows Defender ======
===== Se è disabilitato =====

Se Defender è disabilitato, quiesto potrebbe servire a riabilitarlo

  winmgmt /salvagerepository
  "C:\Program Files\Windows Defender\mpcmdrun.exe" -wdenable


===== Se non è installato =====
==== Windows 2016 ====
  Dism /Online /Enable-Feature /FeatureName:Windows-Defender-Features
  Dism /Online /Enable-Feature /FeatureName:Windows-Defender
  Dism /Online /Enable-Feature /FeatureName:Windows-Defender-Gui

==== Windows 2019/2022 ====
  Dism /Online /Enable-Feature /FeatureName:Windows-Defender