Should I deactivate Windows Defender on Windows Server 2016/2019 after installing F-Secure Server Security or Email and Server Security?

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{content:url("data:image/svg+xml;utf8,<svg version='1.1' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' width='26px' height='18px' xml:space='preserve'><g><path fill='none' stroke='%23010101' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' stroke-miterlimit='10' d='M13.014,14'/></g><g><path fill='%23010101' d='M13,16c-0.256,0-0.512-0.098-0.707-0.293l-3-3c-0.391-0.391-0.391-1.023,0-1.414s1.023-0.391,1.414,0L13,13.586l2.293-2.293c0.391-0.391,1.023-0.391,1.414,0s0.391,1.023,0,1.414l-3,3C13.512,15.902,13.256,16,13,16z'/> </g> </svg>")!important;float: right;} #helpForumsLink:hover .header-bottom-link.smdropdown::before, #FaqsLink:hover .header-bottom-link.smdropdown::before, .header-bottom-link.smdropdown:hover::before {content:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='26px' height='18px' fill='%23010101'><path 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Should I deactivate Windows Defender on Windows Server 2016/2019 after installing F-Secure Server Security or Email and Server Security? - F-Secure Community

Issue:

I've installed F-Secure Server Security or Email and Server Security on a Windows Server 2016/2019 server, but Windows Defender real-time protection is still on. Should I deactivate it when I'm using the F-Secure product?

Resolution:

Yes, Windows Defender should be deactivated when using F-Secure Email and Server Security. Multiple Anti-Virus products running at the same time may cause conflicts.

On Windows Server 2016/2019, Windows Defender will not enter passive or disabled mode automatically if you install a third-party antivirus.

After installing a third-party antivirus you should uninstall Windows Defender AV on Windows Server 2016 to prevent problems caused by having multiple antivirus products installed on a machine.

If you are using Windows Server, version 1803 and Windows 2019, you can enable passive mode by setting this registry key:

Path: HKLM\SOFTWARE\Policies\Microsoft\Windows Advanced Threat Protection
Name: ForceDefenderPassiveMode
Value: 1

Article no: 000002236