diff --git a/windows/threat-protection/windows-defender-atp/defender-compatibility-windows-defender-advanced-threat-protection.md b/windows/threat-protection/windows-defender-atp/defender-compatibility-windows-defender-advanced-threat-protection.md
index e35be7bc63..5844a22096 100644
--- a/windows/threat-protection/windows-defender-atp/defender-compatibility-windows-defender-advanced-threat-protection.md
+++ b/windows/threat-protection/windows-defender-atp/defender-compatibility-windows-defender-advanced-threat-protection.md
@@ -13,7 +13,7 @@ ms.localizationpriority: high
 ms.date: 10/17/2017
 ---
 
-# Windows Defender compatibility
+# Windows Defender Antivirus compatibility
 
 **Applies to:**
 
@@ -30,6 +30,8 @@ ms.date: 10/17/2017
 
 The Windows Defender Advanced Threat Protection agent depends on Windows Defender Antivirus for some capabilities such as file scanning.
 
+You must configure the signature updates on the Windows Defender ATP endpoints whether Windows Defender Antivirus is the active antimalware or not. For more information, see [Update Windows Defender signatures](https://support.microsoft.com/en-us/help/4027712/windows-update-windows-defender-signatures).
+
 If an onboarded endpoint is protected by a third-party antimalware client, Windows Defender Antivirus on that endpoint will enter into passive mode.
 
 Windows Defender Antivirus will continue to receive updates, and the *mspeng.exe* process will be listed as a running a service, but it will not perform scans and will not replace the running third-party antimalware client.
diff --git a/windows/threat-protection/windows-defender-atp/minimum-requirements-windows-defender-advanced-threat-protection.md b/windows/threat-protection/windows-defender-atp/minimum-requirements-windows-defender-advanced-threat-protection.md
index e389fe6cf4..a7201ced3d 100644
--- a/windows/threat-protection/windows-defender-atp/minimum-requirements-windows-defender-advanced-threat-protection.md
+++ b/windows/threat-protection/windows-defender-atp/minimum-requirements-windows-defender-advanced-threat-protection.md
@@ -121,7 +121,9 @@ If the **START_TYPE** is not set to **AUTO_START**, then you'll need to set the
     ```
 
 ## Windows Defender Antivirus signature updates are configured
-The Windows Defender ATP agent depends on the ability of Windows Defender Antivirus to scan files and provide information about them. If Windows Defender Antivirus is not the active antimalware in your organization, you may need to configure the signature updates. For more information see [Configure Windows Defender Antivirus in Windows 10](../windows-defender-antivirus/windows-defender-antivirus-in-windows-10.md).
+The Windows Defender ATP agent depends on the ability of Windows Defender Antivirus to scan files and provide information about them. 
+
+You must configure the signature updates on the Windows Defender ATP endpoints whether Windows Defender Antivirus is the active antimalware or not. For more information, see [Update Windows Defender signatures](https://support.microsoft.com/en-us/help/4027712/windows-update-windows-defender-signatures).
 
 When Windows Defender Antivirus is not the active antimalware in your organization and you use the Windows Defender ATP service, Windows Defender Antivirus goes on passive mode. If your organization has disabled Windows Defender Antivirus through group policy or other methods, machines that are onboarded to Windows Defender ATP must be excluded from this group policy.