@Hassan Bin Nasir Dar Thanks for reaching out.
Server 2019 has Microsoft Defender inbuilt and is by default enabled in Server 2019. If you do not see the status from server normally, you can try this to add the GUI to your server.
You can user powershell to verify if the Defender is running : Get-Service -Name windefend
To get updated antimalware security intelligence, you must have the Windows Update service running. If you use an update management service, like Windows Server Update Services (WSUS), make sure that updates for Microsoft Defender Antivirus Security intelligence are approved for the computers you manage. You can use the following for the update process :
On the server, you can check the events under Applications and Services Logs, then Microsoft, then Windows, then Windows Defender. Once updated, you can find these events which tells you about the updated security engines.
For multiple servers : You can use PowerShell cmdlets : https://learn.microsoft.com/en-us/azure/security/fundamentals/antimalware#enable-and-configure-antimalware-using-powershell-cmdlets-for-azure-resource-manager-vms
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