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windows/security/threat-protection/windows-defender-exploit-guard/attack-surface-reduction-exploit-guard.md

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 >Some information relates to prereleased product which may be substantially modified before it's commercially released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
 
 
-Attack surface reduction rules help prevent behaviors malware often uses to infect computers with malicious code. You can set attack surface reduction rules for computers running Windows 10, versions 1704 and 1709 or later, Windows Server 2016 1803 or later, or Windows Server 2019. 
+Attack surface reduction rules help prevent behaviors malware often uses to infect computers with malicious code. You can set attack surface reduction rules for computers running Windows 10, versions 1709 and 1803 or later, Windows Server, version 1803 (Semi-Annual Channel) or later, or Windows Server 2019. 
 
 
 To use attack surface reduction rules, you need a Windows 10 Enterprise license. If you have a Windows E5 license, it gives you the advanced management capabilities to power them. These include monitoring, analytics, and workflows available in [Microsoft Defender Advanced Threat Protection](../microsoft-defender-atp/microsoft-defender-advanced-threat-protection.md), as well as reporting and configuration capabilities in the Microsoft 365 Security Center. These advanced capabilities aren't available with an E3 license or with Windows 10 Enterprise without subscription, but you can use attack surface reduction rule events in Event Viewer to help facilitate deployment.