diff --git a/windows/security/threat-protection/windows-defender-antivirus/windows-defender-antivirus-compatibility.md b/windows/security/threat-protection/windows-defender-antivirus/windows-defender-antivirus-compatibility.md
index 960e256e35..b22cc4e225 100644
--- a/windows/security/threat-protection/windows-defender-antivirus/windows-defender-antivirus-compatibility.md
+++ b/windows/security/threat-protection/windows-defender-antivirus/windows-defender-antivirus-compatibility.md
@@ -43,6 +43,10 @@ The following matrix illustrates the states that Windows Defender AV will enter
 | Windows Server 2016 |                         Windows Defender AV                         |                       No                        |            Active mode            |
 
 (<a id="fn1">1</a>)  On Windows Server 2016, Windows Defender AV will not enter passive or disabled mode if you have also installed a third-party antivirus product. If you install a third-party antivirus product, you should [uninstall Windows Defender AV on Windows Server 2016](windows-defender-antivirus-on-windows-server-2016.md) to prevent problems caused by having multiple antivirus products installed on a machine.
+If you are Using Windows Server, version 1803 and Windows 2019, you can enable passive mode following the steps below:
+Set the following registry entry: 
+- Path: HKLM\SOFTWARE\Policies\Microsoft\Windows Advanced Threat Protection 
+- Name: ForceDefenderPassiveMode - Value: 1
 
 See the [Windows Defender Antivirus on Windows Server 2016](windows-defender-antivirus-on-windows-server-2016.md#install-or-uninstall-windows-defender-av-on-windows-server-2016) topic for key differences and management options for Windows Server installations.