Update microsoft-defender-antivirus-compatibility.md

Updated topic per task 4800461

windows/security/threat-protection/microsoft-defender-antivirus/microsoft-defender-antivirus-compatibility.md

@@ -99,7 +99,7 @@ The table in this section summarizes the functionality and features that are ava
 
 - When Microsoft Defender Antivirus is disabled automatically, it can be re-enabled automatically if the protection offered by a non-Microsoft antivirus product expires or otherwise stops providing real-time protection from viruses, malware, or other threats. Automatic re-enabling helps to ensure that antivirus protection is maintained on your devices. It also allows you to enable [limited periodic scanning](limited-periodic-scanning-microsoft-defender-antivirus.md), which uses the Microsoft Defender Antivirus engine to periodically check for threats in addition to your main antivirus app.
 
-- When Microsoft Defender Antivirus is in passive mode, you can still [manage updates for Microsoft Defender Antivirus](manage-updates-baselines-microsoft-defender-antivirus.md); however, you can't move Microsoft Defender Antivirus into active mode if your devices have an up-to-date, non-Microsoft antivirus product providing real-time protection from malware.
+- When Microsoft Defender Antivirus is in passive mode, you can still [manage updates for Microsoft Defender Antivirus](manage-updates-baselines-microsoft-defender-antivirus.md); however, you can't move Microsoft Defender Antivirus into active mode if your devices have an up-to-date, non-Microsoft antivirus product providing real-time protection from malware. For optimal security layered defense, and detection efficacy please make sure to update the [Microsoft Defender Antivirus protection (Security intelligence update, Engine and Platform)](https://docs.microsoft.com/windows/security/threat-protection/microsoft-defender-antivirus/manage-updates-baselines-microsoft-defender-antivirus) even if Microsoft Defender Antivirus is running in passive mode.
 
    If you uninstall the non-Microsoft antivirus product, and use Microsoft Defender Antivirus to provide protection to your devices, Microsoft Defender Antivirus will return to its normal active mode automatically.