If the service is missing from your Features list, you can restore it using or PowerShell . Method 1: Using Server Manager (GUI)
: On Server 2016, Defender may stay in "Passive Mode" even after uninstalling other antivirus software. To force it active, you can use the Microsoft Registry Editor to set ForceDefenderPassiveMode to 0 under HKLM\SOFTWARE\Policies\Microsoft\Windows Advanced Threat Protection .
: In rare cases where the feature was completely removed, you may need to use DISM to point to a Windows Server 2016 ISO as a repair source to "re-download" the local binaries. windows defender download windows server 2016
Install-WindowsFeature -Name Windows-Defender, Windows-Defender-GUI Use code with caution.
If you cannot find the feature in Server Manager, your system files may be corrupted or removed. If the service is missing from your Features
If you prefer a command-line approach, run Windows PowerShell as an Administrator and enter: powershell
Open and click Manage > Add Roles and Features . Follow the wizard to the Features section. : In rare cases where the feature was
: To ensure you have the latest protection, you can manually download the latest security intelligence updates directly from the Microsoft Security Intelligence portal. Advanced: Microsoft Defender for Endpoint Microsoft Defender Antivirus on Windows Server