If you use an update management service, like Windows Server Update Services (WSUS), make sure Microsoft Defender Antivirus Security intelligence updates are approved for the computers you manage.īy default, Windows Update doesn't download and install updates automatically on Windows Server 2019 or Windows Server 2022, or Windows Server 2016. To get your regular security intelligence updates, the Windows Update service must be running. Note the modified logic for ForceDefenderPassiveMode when tamper protection is enabled: Once Microsoft Defender Antivirus is toggled to active mode, tamper protection will prevent it from going back into passive mode even when ForceDefenderPassiveMode is set to 1. ![]() To place it into active mode, switch this value to 0 instead. To switch Defender Antivirus to passive mode, even if it was disabled before onboarding, you can apply the ForceDefenderPassiveMode configuration with a value of 1.If "Turn off Windows Defender" is already in place before onboarding to Microsoft Defender for Endpoint, there will be no change and Defender Antivirus will remain disabled.In addition, the tamper protection feature will allow a switch to active mode but not to passive mode. ![]() Instead, it will place it into passive mode. 0 and later: If a server has been onboarded to Microsoft Defender for Endpoint, the "Turn off Windows Defender" group policy setting will no longer completely disable Windows Defender Antivirus on Windows Server 2012 R2 and later. To view all the services that aren't running, run the following PowerShell cmdlet: sc query state= allīeginning with platform version. When Microsoft Defender Antivirus is running, the STATE value displays RUNNING. The sc query command returns information about the Microsoft Defender Antivirus service. To do that, run the following command from a command prompt: sc query Windefend Verify that firewall protection is turned onĪs an alternative to PowerShell, you can use Command Prompt to verify that Microsoft Defender Antivirus is running. Verify that Microsoft Defender Antivirus is running Use the PowerShell cmdlets in the following table: Procedure Verify Microsoft Defender Antivirus is runningĪfter you've installed (or reinstalled) Microsoft Defender Antivirus, your next step is to verify that it's running. Run the following PowerShell cmdlet: Install-WindowsFeature -Name Windows-DefenderĮvent messages for the antimalware engine included with Microsoft Defender Antivirus can be found in Microsoft Defender Antivirus Events. Use PowerShell to install Microsoft Defender AntivirusĢ. Also select the GUI for Windows Defender option. When you get to the Features step of the wizard, select the Microsoft Defender Antivirus option. See Install or Uninstall Roles, Role Services, or Features, and use the Add Roles and Features Wizard.Ģ. Use the Add Roles and Features Wizard to install Microsoft Defender Antivirusġ. If you need to install or reinstall Microsoft Defender Antivirus on Windows Server, use one of the procedures in the following table: Procedure ![]() Install Microsoft Defender Antivirus on Windows Server Run the following PowerShell cmdlet: Install-WindowsFeature -Name Windows-Defender-GUIįor more information, see Getting Started with PowerShell. On your Windows Server, open Windows PowerShell as an administrator.Ģ. When you get to the Features step of the wizard, under Windows Defender Features, select the GUI for Windows Defender option.ġ. See Install roles, role services, and features by using the add Roles and Features Wizard, and use the Add Roles and Features Wizard.Ģ. Turn on the GUI using the Add Roles and Features Wizardġ. To install the GUI, use one of the procedures in the following table: Procedure However, many organizations prefer to use the GUI for Microsoft Defender Antivirus. The GUI isn't required you can use PowerShell, Group Policy, or other methods to manage Microsoft Defender Antivirus. Sometimes, the user interface (GUI) is installed by default. If you're using Windows Server 2012 R2, see Options to install Microsoft Defender for Endpoint.īy default, Microsoft Defender Antivirus is installed and functional on Windows Server.
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