DisableScanningMappedNetworkDrivesForFullScan.Īs you can see, scanning of removable drives is disabled (DisableRemovableDriveScanning = True).In Windows 11 the following Windows Defender features are disabled by default: Let’s get the current settings using the command: Get-MpPreference | fl disable* For example, you need to enable the scanning of removable drives. In the Windows Defender settings, the IPS, removable disk check, email, and some other checks are disabled by default. To change the settings, use the Set-MpPreference. To display current Windows Defender settings, you can use cmdlet Get-MpPreference.
To quickly check if Windows Defender is running on your computer and find out the last antivirus definition update date, run the following PowerShell command: Get-MpComputerStatus | Select-Object -Property Antivirusenabled,AMServiceEnabled,AntispywareEnabled,BehaviorMonitorEnabled,IoavProtectionEnabled,NISEnabled,OnAccessProtectionEnabled,RealTimeProtectionEnabled,AntivirusSignatureLastUpdated Get-MpComputerStatus allows you to display the current status of Windows Defender: enabled options, virus definition date and version, last scan time, and others.ĪntispywareSignatureLastUpdated : 10:07:00 PMĪntispywareSignatureVersion : 1.361.711.0ĪntivirusSignatureLastUpdated : 10:07:00 PMĬomputerID : 3DA6BCF53-D12A-2A2E-BA21-FE9C54C1092DĭeviceControlDefaultEnforcement : UnknownĭeviceControlPoliciesLastUpdated : 7:26:44 AM You can use PowerShell to check service status of Microsoft Defender Antivirus Service (WinDefend), Windows Security Service (SecurityHealthService), and Security Center (wscsvc): Get-Service Windefend, SecurityHealthService, wscsvc| Select Name,DisplayName, Status If you need only examples of PowerShell commands, run: Get-Help Add-MpPreference -Examples How to Check if Windows Defender is Running?īefore using PowerShell cmdlets to control Windows Defender, it is advisable to check if the service is running. To get full help on a specific cmdlet of the Defender module, use the Get-Help command: Get-Help Start-MpScan –Full
Get-MpThreatDetection - displays a list of active and recent threats detected on the computer.Get-MpThreatCatalog - allows you to get known threats from the definitions directory.Get-MpThreat - view the history of detected threats on your computer.Get-MpPreference - used to get Windows Defender scan and update options.Get-MpComputerStatus - allows you to get the status of anti-virus software on your computer.Add-MpPreference - used to change Windows Defender settings.
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