Policy

Check for the latest virus and spyware security intelligence on startup

This policy setting allows you to manage whether a check for new virus and spyware security intelligence will occur immediately after service startup. If you enable this setting, a check for new security intelligence will occur after service startup. If you disable this setting or do not configure this setting, a check for new security intelligence will not occur after service startup.

Policy
PackMicrosoft Windows
CategoryWindows Components / Microsoft Defender Antivirus / Security Intelligence Updates
Policy IDc45429718b25
Internal nameSignatureUpdate_UpdateOnStartup

Registry

Copy registry mappings

HKLM\Software\Policies\Microsoft\Windows Defender\Signature Updates\UpdateOnStartUp (enabled) = 1
HKLM\Software\Policies\Microsoft\Windows Defender\Signature Updates\UpdateOnStartUp (disabled) = 0

Policy notes

This policy setting allows you to manage whether a check for new virus and spyware security intelligence will occur immediately after service startup. If you enable this setting, a check for new security intelligence will occur after service startup. If you disable this setting or do not configure this setting, a check for new security intelligence will not occur after service startup.

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.Configure security intelligence updates according to the scheduler for VDI clients.Define file shares for downloading security intelligence updates