Policy

Define file shares for downloading security intelligence updates

This policy setting allows you to configure UNC file share sources for downloading security intelligence updates. Sources will be contacted in the order specified. The value of this setting should be entered as a pipe-separated string enumerating the security intelligence update sources. For example: "{\\unc1 | \\unc2 }". The list is empty by default. If you enable this setting, the specified sources will be contacted for security intelligence updates. Once security intelligence updates have been successfully downloaded from one specified source, the remaining sources in the list will not be contacted. If you disable or do not configure this setting, the list will remain empty by default and no sources will be contacted.

Policy
Pack Microsoft Windows
Category Windows Components / Microsoft Defender Antivirus / Security Intelligence Updates
Policy ID 2728c8825c15
Internal name SignatureUpdate_DefinitionUpdateFileSharesSources

Registry

Copy registry mappings

HKLM\Software\Policies\Microsoft\Windows Defender\Signature Updates\DefinitionUpdateFileSharesSources

Policy notes

This policy setting allows you to configure UNC file share sources for downloading security intelligence updates. Sources will be contacted in the order specified. The value of this setting should be entered as a pipe-separated string enumerating the security intelligence update sources. For example: "{\\unc1 | \\unc2 }". The list is empty by default. If you enable this setting, the specified sources will be contacted for security intelligence updates. Once security intelligence updates have been successfully downloaded from one specified source, the remaining sources in the list will not be contacted. If you disable or do not configure this setting, the list will remain empty by default and no sources will be contacted.

Related policies

Allow notifications to disable security intelligence based reports to Microsoft MAPSAllow real-time security intelligence updates based on reports to Microsoft MAPSAllow security intelligence updates from Microsoft UpdateAllow security intelligence updates when running on battery powerAllows Microsoft Defender Antivirus to update and communicate over a metered connection.Check for the latest virus and spyware security intelligence on startupConfigure security intelligence updates according to the scheduler for VDI clients.