Windows Defender bør fjernes fra Server 2016/2019, hvis der er anden Antivirus installeret

Kør fra Administrator CMD prompt :

Dism /online /Disable-Feature /FeatureName:Windows-Defender /Remove /NoRestart /quiet

Enable or Disable Windows Features Using DISM

https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/enable-or-disable-windows-features-using-dism