Update symantec-to-microsoft-defender-atp-setup.md

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Denise Vangel-MSFT 2020-06-18 08:41:08 -07:00
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## Set Microsoft Defender AV to passive mode ## Set Microsoft Defender AV to passive mode
> [!TIP]
> If you're running Windows 10, you do not need to perform this task. Proceed to **[Enable Microsoft Defender Antivirus](#enable-microsoft-defender-antivirus)**.
On certain versions of Windows, Microsoft Defender Antivirus will not enter passive or disabled mode if you have also installed a third-party antivirus product, such as Symantec. (See [Microsoft Defender Antivirus compatibility](https://docs.microsoft.com/windows/security/threat-protection/microsoft-defender-antivirus/microsoft-defender-antivirus-compatibility)) However, you can enable passive mode by setting a registry key. On certain versions of Windows, Microsoft Defender Antivirus will not enter passive or disabled mode if you have also installed a third-party antivirus product, such as Symantec. (See [Microsoft Defender Antivirus compatibility](https://docs.microsoft.com/windows/security/threat-protection/microsoft-defender-antivirus/microsoft-defender-antivirus-compatibility)) However, you can enable passive mode by setting a registry key.
The following procedure applies to endpoints or devices that are running the following versions of Windows: The following procedure applies to endpoints or devices that are running the following versions of Windows:
@ -39,9 +42,6 @@ The following procedure applies to endpoints or devices that are running the fol
- Windows Server, version 1803 (core-only mode); or - Windows Server, version 1803 (core-only mode); or
- Windows Server 2019 - Windows Server 2019
> [!TIP]
> If you're running Windows 10, you do not need to perform this task.
1. As an administrator on the endpoint or device, open Registry Editor. 1. As an administrator on the endpoint or device, open Registry Editor.
2. Navigate to `Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Windows Advanced Threat Protection`. 2. Navigate to `Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Windows Advanced Threat Protection`.
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When you add [exclusions to Microsoft Defender AV scans](https://docs.microsoft.com/windows/security/threat-protection/microsoft-defender-antivirus/configure-exclusions-microsoft-defender-antivirus), you should add path and process exclusions. Keep the following points in mind: When you add [exclusions to Microsoft Defender AV scans](https://docs.microsoft.com/windows/security/threat-protection/microsoft-defender-antivirus/configure-exclusions-microsoft-defender-antivirus), you should add path and process exclusions. Keep the following points in mind:
- Path exclusions exclude specific files and whatever those files access. - Path exclusions exclude specific files and whatever those files access.
- Process exclusions exclude whatever a process touches, but does not exclude the process itself. - Process exclusions exclude whatever a process touches, but does not exclude the process itself.
- If you list each executable (.exe) as both a path exclusion and a process exclusion, you can help ensure that the process and whatever it touches are all excluded. - If you list each executable (.exe) as both a path exclusion and a process exclusion, the process and whatever it touches are excluded.
- List your process exclusions using their full path and not by their name only. (The name-only method is less secure.) - List your process exclusions using their full path and not by their name only. (The name-only method is less secure.)
You can choose from several methods to add your exclusions to Microsoft Defender AV, as listed in the following table: You can choose from several methods to add your exclusions to Microsoft Defender AV, as listed in the following table: