According to the documentation, the setting Turn off Microsoft Defender Antivirus has no effect. If another virus scanner from a different vendor is running, Defender will switch itself off anyway. However, there are not many good reasons to do this. This only works if the tamper protection is deactivated. You can remove these exclusions with Remove-MpPreference -ExclusionExtension "dat,db" Real-time protectionĪ key feature of Defender Antivirus is that it continuously monitors changes in the file system or registry to detect suspicious activities or objects.ĭefender Antivirus cannot be uninstalled on client operating systems, but you can switch off real-time protection using the respective policy. An example of this is: Set-MpPreference -ExclusionExtension "dat,db" If you define exclusions using PowerShell, then the Set-MpPreference parameters DisableAutoExclusions, ExclusionExtension, ExclusionIpAddress, ExclusionPath, and ExclusionProcess achieve this task. By excluding IP addresses, you can prevent Antivirus from scanning requests coming from these systems. Exclusions by process allow you to prevent Defender from scanning files opened by a specific program.Īntivirus scans not only the file system, but also several protocols that are considered vulnerable. The other three settings, on the other hand, allow you to define your own exclusions, either by path, file extension, processes, or IP addresses.
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